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
Your experiment reports must be checked with care before _____.
A
handed them in
B
them handing in
C
being handed in
D
handing them in
参考答案
参考解析
解析：
更多 “单选题Your experiment reports must be checked with care before _____.A handed them inB them handing inC being handed inD handing them in” 相关考题
考题
Can fans attend the press conference?A.Yes, but the faces should be recognizableB.Yes, but the fans must be obedient.C.Yes, but the number must be limitedD.Yes, but they must be checked
考题
There is something wrong with my TV set, I must have it ().
A.checkingB.checkC.to checkD.checked
考题
（B）The surprising experiment I am about to describe proves that air is all around you and that it proves down upon you. Air pressure is a wonderful force. When you swim underwater, you can feel water push down your body. The air all around you does the same. However, your body is so used to it that you do not notice this. The pressure is caused by a layer of air called the atmosphere. This layer surrounds the Earth, extending to about five kilometers above the Earth’s surface.The following experiment is an easy one that you can do at home. But make sure that you are supervised, because you will need to use matches. Now foe the experiment！What you need?A hard-boiled egg without the shell?A bottle with a neck slightly smaller than the egg?A piece of paper?A matchMetheod1） Check that the paper will sit firmly on the neck of the bottle.2） Tear the paper into strips and put the strips into the bottle.3） Light the paper by dropping a burning match into the bottle.4） Quickly sit the egg on the neck of the bottle.ResultAstonishingly, the egg will be sucked into the bottle. Your friends will be amazed when you show them the experiment. But be careful when you handle matches.Why it happenedAs the paper burns, it needs oxygen and uses up the oxygen （air） in the bottle. The egg acts as a seal in the neck of the bottle, so no more air can get inside. This reduces the air pressure inside the bottle. The air pressure must equalize, so more air from outside must enter the bottle. The outside air pressure against the egg and then the egg is pushed into the bottle! The proves that air is all around and that it is pressing down on it.60. Why is there the need to take care when you are doing the experiment?A. The bottle could break.B. You need to light the paper with a match.C. The egg needs to be shelled.D. The egg has to be perfectly placed on the neck of the bottle.
考题
We must _______ that the experiment is controlled as rigidly as possible.
A.assureB.ensureC.secureD.insure
考题
Customer service is the service or care that a consumer receives before, during and after a purchase. It's one of the factors that come in to play when a consumer is determining buying value, the other is the quality of the product or service that is being____1____Consumers often must encounter an experience to not only be a satisfied customer, but a loyal customer. Customer service is a part of that experience.Top notch service will create______2___and a returning customer, which is what we all must strive for.Excellent customer service is____3____to businesses today. It's a component that is often missing, unfortunately. How do you provide great customer service? Always make your customer a ____4___. Greet them in a friendly manner, whether that be via telephone, email or in person.Let them know you are there to help and that you will take care of them, not only before the sale but after as well. After all, in a thriving business customers are not ____5____; it's a requirement for businesses to survive.A. vitalB. optionalC. priorityD. offeredE. loyalty
考题
Which two statements are true about applying Host Checker at the realm level?()
A. If Evaluate is checked then the client must pass policy to get the sign-in page.B. If Evaluate is checked then the client can fail policy and still get the sign-in page.C. If Require and Enforce is checked then the client must pass policy to get the sign-in page.D. If Require and Enforce is checked then the client can fail policy and still get the sign-in page.
考题
Your ship is returning to New Orleans from a foreign voyage and carrying a bulk cargo of anhydrous ammonia．You must notify the Captain of the Port，New Orleans，______．A.at least 96 hours before entering portB.if you are not participating in the USMER systemC.only if you have a hazardous condition aboardD.only if your arrival will vary more than six hours from your ETA reported to AMVER
考题
Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism．These correctors are the ______．A.Fore-and-aft and athwartships magnetsB.Dip needle and heeling magnetC.Heeling magnet and Flinders barD.Flinders bar and quadrantal spheres
考题
Before starting any diesel or gasoline engine, which of the following must be checked?____.A.Oil levelB.Flow of cooling waterC.Exhaust dischargeD.All of the above
考题
You must explain（）how they succeeded（）the experiment.A、of us；forB、at us；atC、to us；inD、for us；to
考题
船舶离港之前，所有的吊杆必须纵向收放好。（）A、Before leaving the harbour, all derricks must be stowed.B、After leaving the harbour, all derricks must be stowed fore and aft.C、Before leaving the harbour, all derricks must be stowed fore and aft.D、Before leaving the harbour, all heavy derricks must be stowed fore and aft.
考题
You plan to execute the following command to perform a Flashback Database operation in your database： SQL FLASHBACK DATABASE TO TIMESTAMP （SYSDATE -5/24）； Which two statements are true about this？（）A、 The database must have multiplexed redo log filesB、 The database must be in the MOUNT state to execute the commandC、 The database must be in the NOMOUNT state to execute the commandD、 The database must be opened in RESTRICTED mode before this operationE、 The database must be opened with the RESETLOGS option after the flashback operation
考题
You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A、 You must configure OMF in your database.B、 You must enable block change tracking feature in your database.C、 You must enable ROW MOVEMENT feature on the ORDERS table.D、 You must use the Flashback Version Query before using the Flashback Table feature.
考题
单选题When you adjust a thermostatic expansion valve, （）.A
refrigerant must be bled off the sensing line before adjustments are madeB
all refrigerant must be pumped into the receiver before adjustments are madeC
time must be allowed for conditions to stabilize in the evaporator before further adjustments are madeD
all refrigerant must be routed through the dehydrator while changing the superheat setting
考题
多选题You plan to execute the following command to perform a Flashback Database operation in your database: SQL FLASHBACK DATABASE TO TIMESTAMP (SYSDATE -5/24); Which two statements are true about this?（）AThe database must have multiplexed redo log filesBThe database must be in the MOUNT state to execute the commandCThe database must be in the NOMOUNT state to execute the commandDThe database must be opened in RESTRICTED mode before this operationEThe database must be opened with the RESETLOGS option after the flashback operation
考题
多选题Which two statements are true about applying Host Checker at the realm level?（）AIf Evaluate is checked then the client must pass policy to get the sign-in page.BIf Evaluate is checked then the client can fail policy and still get the sign-in page.CIf Require and Enforce is checked then the client must pass policy to get the sign-in page.DIf Require and Enforce is checked then the client can fail policy and still get the sign-in page.
考题
单选题We must（）that the experiment is controlled as rigidly as possible.A
assureB
secureC
ensureD
issue
考题
单选题Before starting any diesel or gasoline engine，which of the following must be checked? （）A
Oil levelB
Flow of cooling waterC
Exhaust dischargeD
All of the above
考题
单选题Which one of the followings may not be checked before engine starting?（）A
tank levelB
Various filtersC
DrainsD
seawater temperature
考题
单选题You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A
You must configure OMF in your database.B
You must enable block change tracking feature in your database.C
You must enable ROW MOVEMENT feature on the ORDERS table.D
You must use the Flashback Version Query before using the Flashback Table feature.
考题
单选题The best title for the passage might be ______.A
How to Take Care of Your BossB
How to Get Along with Your BossC
How to Accept Your Boss's CriticismD
How to Accomplish Your Boss's Objective
考题
单选题Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors are the（）.A
fore-and-aft and athwartships magnetsB
dip needle and heeling magnetC
heeling magnet and Flinders barD
Flinders bar and quadrantal spheres
考题
单选题In order to achieve his objectives, your boss expects that you will _____.A
do your best in your workB
show your management skillsC
get along with your colleaguesD
write reports to upper management
考题
单选题A
Write their lab reports.B
Find out Professor Smith’s schedule.C
Interview some high school students.D
Finish their chemistry experiment.
热门标签
最新试卷