网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
A
squaring the corners
B
rounding the corners
C
plug welding the corners
D
slot welding the corners
参考答案
参考解析
解析：
暂无解析
更多 “单选题Cracks may be prevented from developing at the corners of welded plating inserts by（）.A squaring the cornersB rounding the cornersC plug welding the cornersD slot welding the corners” 相关考题
考题
CWe have met the enemy, and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually found in the African rain forest, suddenly turns up in children in the American Midwest, it’s hard not to wonder if the disease that comes from foreign animals is homing in on human beings. “Most of the infections (感染) we think of as human infections started in other animals,” says Stephen Morse, director of the Center for Public Health Preparedness at Columbia University.It’s not just that we’re going to where the animals are; we’re also bringing them closer to us. Popular foreign pets have brought a whole new disease to this country. A strange illness killed Isaksen’s pets, and she now thinks that keeping foreign pets is a bad idea. “I don’t think it’s fair to have them as pets when we have such a limited knowledge of them,” says Isaksen.“Laws allowing these animals to be brought in from deep forest areas without stricter control need changing,” says Peter Schantz. Monkey-pox may be the wake-up call. Researchers believe infected animals may infect their owners. We know very little about these new diseases. A new bug (病毒) may be kind at first. But it may develop into something harmful (有害的). Monkey-pox doesn’t look a major infectious disease. But it is not impossible to pass the disease from person to person.64. We learn from Paragraph 1 that the pet sold at the shop may _________.A. come from ColumbiaB. prevent us from being infectedC. enjoy being with children D. suffer from monkey-pox
考题
The text suggests that in the future we _______.A. may have to fight against more new diseasesB. may easily get infected by diseases from dogsC. should not be allowed to have petsD. should stop buying pets from Africa
考题
If we overwork ourselves, we may suffer from both physical and psychological fatigue.()
A. pictureB. mimicC. markD. tire
考题
If we ______ the problem from a different angle, a solution may become more obvious.()
A. contractB. uncoverC. viewD. intend
考题
We may conclude from the passage that ______.A) it is probably as dangerous to live in Missouri as in CaliforniaB) the New Madrid fault will eventually develop a mountain range in MissouriC) California will become an island in futureD) a big earthquake will occur to California soon
考题
According to the article, which of the following statements is not true?A．Tightly sealed house may be harmful in another aspect.B．The house is unsealed to prevent the air from leaking.C．The air always leaks from cracks.D．New house is worse than old one in the aspect of indoor pollution.
考题
What can we infer from the underlineed sentence in Paragraph 3?A.People are fra less familiar with the world of fantasy.B.The world around us could serve as a sound of wonder.C.The world of fantasy can be mirred by a small and lively pond.D.Modern technology prevents us from developing our sense of wonder.
考题
What can we infer from the underlined sentence in Paragraph 3?A．people are far less familiar witn the world of fantasyB．the world around us could serve as a source of wonderC．the world of fantasy can be mirrored by a small and lively pond.D．Modern technology prevents us from developing our sense of wonder
考题
根据内容，回答下面问题：We have met the enemy, and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually found in the African rain forest, suddenly turns up in children in the American Midwest, it’s hard not to wonder if the disease that comes from foreign animals is homing in on human beings.“Most of the infections(感染)we think of as human infections started in other animals.”says Stephen Morse, director of the Center for Public Health Preparedness at Columbia University.It’s not just that we’re going to where the animals are; we’re also bringing them closer to us. Popular foreign pets have brought a whole new disease to this country. A strange illness killed Isaksen’s pets, and she now thinks that keeping foreign pets is a bad idea.“I don’t think it’s fair to have them as pets when we have such a limited knowledge of them,”says Isaksen.“Laws allowing these animals to be brought in from deep forest areas without stricter control need changing,”says Peter Schantz. Monkey-pox may be the wake-up call. Researchers believe infected animals may infect their owners. We know very little about these new diseases. A new bug(病毒)may be kind at first. But some strains(变异体)may become harmful. Monkey-pox doesn’t look a major infectious disease. But it is not impossible to pass the disease from person to person.第9题：We learn from Paragraph I that the pet sold at the shop may____ .A．come from ColumbiaB．enjoy being with childrenC．prevent us from being infectedD．suffer from monkey-pox
考题
Cracks may be prevented from developing at the corners of welded plating inserts by ______.A.squaring the cornersB.rounding the cornersC.plug welding the cornersD.slot welding the corners
考题
A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by___________.A.cutting a square notch at each end of the crackB.drilling a hole at each end of the crackC.slot-welding the crackD.welding a doubler over the crack
考题
共用题干
What We Take From and Give to the SeaAs long as we have been on earth,we have used the sea around us.We take from the ocean,and we give to it.We take fishes from the ocean-millions of kilograms of fish,every year,to________(51)millions of people.We even_______(52)their bones for fertilizer.We take minerals from the ocean.One way to get salt is to_______(53)seawater in shallow basin and leave it until it evaporates（蒸发）.Along with salt,other minerals are left_______(54)evaporation.Much gold and silver drift dissolved in the waters of the sea,too.But the sea does not give them_______(55)by simple evaporation.________(56)gifts from the sea are pearls , sponges（海绵）and seaweed.Pearls________(57)jewelry.Natural sponges become cleaning aids.Seaweed becomes______(58)of many kinds一even candy,and ice cream一as well as medicine.Believe it or not,fresh water is another_______(59)from the sea.We cannot drink ocean water.Some of its contents may______(60)illness.But ocean water becomes fresh water when the salts are ________(61).In the future,we will find ourselves．________(62)more and more onfresh water from the sea.The sea_______(63)us food,fertilizer,minerals,water,and other gifts.What do we give the sea?Garbage.We pollute the ocean_______(64)we use it as a garbage dump.Huge as it is,the ocean cannot hold all the water that we pour into it.________(65)garbage into the ocean is killing off sea life.Yet as the world population grows,we may need the sea and its gifts more than ever._________65A:Reducing B:Collecting C:Removing D:Casting
考题
共用题干
What We Take From and Give to the SeaAs long as we have been on earth,we have used the sea around us.We take things from the ocean,and we give to it.We take fishes from the ocean-millions of kilograms of fish,every year,to feed millions of people.______(46)We take minerals from the ocean.One way to get salt is to place seawater in a shallow basin and leave it until it evaporates.______(47) Much gold and silver drift dissolved in the waters of the sea,too.But the sea does not give them up by simple evaporation.Other gifts from the sea are pearls,sponges and seaweed.Pearls become jewelry.______(48)Seaweed becomes food of many kinds-even candy,and ice cream-as well as medicine.Believe it or not,fresh water is another gift from the sea.We cannot drink ocean water.______(49)But ocean water becomes fresh water when the salts are removed.In the future,we will find ourselves depending more and more on fresh water from the sea.The sea gives us food,fertilizer,minerals,water,and other gifts .What do we give the sea?Garbage.______(50)Huge as it is,the ocean cannot hold all the water we pour into it. Dumping garbage into the ocean is killing off sea life.Yet as the world population grows,we may need the sea and its gifts more than ever.We are finally learning that if we destroy our sea,we might also destroy ourselves.Hopeful-ly,it is not too late.______(48)A: Natural sponges become cleaning aids.B: We pollute the ocean when we use it as a garbage dump.C: The area of the sea is becoming smaller and smaller.D: Along with salt,other minerals are left after evaporation.E: We even use their bones for fertilizer.F: Some of its contents may cause illness.
考题
单选题We can learn that, while visiting the Thi-Lor-Su waterfall, visitors ______.A
are rewarded for taking garbage awayB
are forbidden to take packaged food and drinksC
are punished heavily if they throw garbage carelesslyD
are prevented from taking a vehicle even if they are tired
考题
单选题From the passage, we learn that Horta _____.A
is from BrazilB
conducts his research in the U.S.C
has 30 researchers on his teamD
is well-known in developing countries
考题
单选题A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.A
cutting a square notch at each end of the crackB
drilling a hole at each end of the crackC
slot-welding the crackD
welding a doubler over the crack
考题
单选题From the passage, we learn that Horta______.A
is from BrazilB
conducts his research in the U.S.C
has 30 researchers on his teamD
is well-known in developing countries
考题
单选题So heavy _____ that we were prevented from going out.A
the rain wasB
is the rainC
was the rainD
would the rain be
考题
单选题From the story we can guess Mr. Zhang may be a _____.A
engineerB
doctorC
tour guideD
Translator
考题
单选题What can we learn from the passage?A
It may be difficult for the young to learn new skills.B
Dogs play an important part in language and culture.C
We can be successful if we learn from our own mistakes.D
Dogs like the hottest days in summer very much.
考题
单选题Cracks in the cylinders and cylinder covers may （） unequal heating.A
result fromB
result inC
give outD
given from
考题
单选题Cracks in cylinder and cylinder covers may （） from unequal heating.A
makeB
causeC
resultD
produce
考题
单选题What can we learn from the passage?A
Both festivals are in May.B
Hand-made gifts are more valuable.C
Not all the children love their parents.
考题
单选题We may conclude from the passage that the four media luna departments ______.A
are mainly from western highlandsB
get united to fight against Mr. Morales’s presidencyC
want bigger share of gas exportD
have priority over the other three levels of autonomous organization
考题
单选题Banking panics may be prevented by means of _____.A
deposit insuranceB
growth strategyC
long-term borrowingD
warning memo
考题
单选题From the context, we may guess that the word “squabble” means______.A
accidentB
mealC
jokeD
quarrel
热门标签
最新试卷