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Gordian knot
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考题
The best method for tying two lines of the same size together is by using a ______.A.becket bendB.two bowlinesC.single carrick bendD.square knot
考题
According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knot service speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?A.6 knotsB.7 knotsC.9 knotsD.12 knots
考题
If a mooring line should part while you are tying up at a dock，you should make a temporary eye by tying a ______．A.becket bendB.clove hitchC.bowlineD.square knot
考题
Which bend or knot is used to tie a small line to a larger one ________．A.Becket bendB.BowlineC.Clove hitchD.Lark's head
考题
Which knot is suitable for hoisting an unconscious person ________．A.Bowline on a bightB.Fisherman's loopC.French bowlineD.Spider hitch
考题
A “figure eight”knot is used to ______.A.be a stopperB.shorten a lineC.join lines of equal sizeD.keep a line from passing through a sheave
考题
共用题干
The Greatest Mystery of WhalesThe whale is a warm-blooded,air-breathing animal,giving birth to its young alive,sucking them-and, like all mammals,originated on land.There are many______(51)of this.Its front flippers（鳍状肢）, used for steering and stability,are traces of feet.Immense strength is______(52)into the great body of the big whales,and in fact most of a wha'e'sbo衡is one gigantic muscle.The blue whale's pulling strength has been estimated______(53) 400 horsepower.One specimen was reported to have towed（拖）a whaling vessel for seven hours at the______ (54)of eight knot（节）.An angry whale will______(55).A famous example of this was the fate of Whaler Essex,______(56)was sunk off the coast of South America early in the last century.More recently,steel shipshave ___________( 57 ) their plates buckled（使弯曲）in the same way.Sperm whales（抹香鲸）were known to seize the old-time whaleboats in their jaws and crush them.The greatest______(58)of whales is their diving ability.The sperm whale dives to the bottom for his ______(59)food,the octopus（章鱼）.In that search he is known to go as far down as 3,200 feet,where the ______(60)is 1 ,400 pounds to a square inch.Doing so he will______(61)underwater as long as one hour.Two special1 skills are involved in this storing up enough______(62)(all whales are air-breathed ) and tolerating the great change in pressure.Just how he does it scientists have not______(63).It is believed that some of the oxygen is stored in a special______(64)of blood vessels,rather than just held in the lungs.And it is believed that a special kind of oil in his head is some sort of a compensating mechanism that ______(65)adjusts the internal pressure of his body.But since you can't bring a live whale into the laboratory for study,no one knows just how these things work.65._________A:mentally B:artificially C:manually D:automatically
考题
共用题干
The Greatest Mystery of WhalesThe whale is a warm-blooded,air-breathing animal,giving birth to its young alive,sucking them-and, like all mammals,originated on land.There are many______(51)of this.Its front flippers（鳍状肢）, used for steering and stability,are traces of feet.Immense strength is______(52)into the great body of the big whales,and in fact most of a wha'e'sbo衡is one gigantic muscle.The blue whale's pulling strength has been estimated______(53) 400 horsepower.One specimen was reported to have towed（拖）a whaling vessel for seven hours at the______ (54)of eight knot（节）.An angry whale will______(55).A famous example of this was the fate of Whaler Essex,______(56)was sunk off the coast of South America early in the last century.More recently,steel shipshave ___________( 57 ) their plates buckled（使弯曲）in the same way.Sperm whales（抹香鲸）were known to seize the old-time whaleboats in their jaws and crush them.The greatest______(58)of whales is their diving ability.The sperm whale dives to the bottom for his ______(59)food,the octopus（章鱼）.In that search he is known to go as far down as 3,200 feet,where the ______(60)is 1 ,400 pounds to a square inch.Doing so he will______(61)underwater as long as one hour.Two special1 skills are involved in this storing up enough______(62)(all whales are air-breathed ) and tolerating the great change in pressure.Just how he does it scientists have not______(63).It is believed that some of the oxygen is stored in a special______(64)of blood vessels,rather than just held in the lungs.And it is believed that a special kind of oil in his head is some sort of a compensating mechanism that ______(65)adjusts the internal pressure of his body.But since you can't bring a live whale into the laboratory for study,no one knows just how these things work.62._________A:heat B:energy C:foodD:oxygen
考题
单选题The function of literary artist is to ______.A
communicate with the readerB
carry on the business of lifeC
provide a knot and stitchD
present his ideas attractively
考题
单选题When securing a hook to the end of a wire rope you should use（）.A
A bowline knotB
A long spliceC
An overhand knot with a wire rope clipD
Wire rope clips with a thimble eye
考题
单选题According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 20 knot service speed, must be capable of producing a rudder movement at which of the minimum speeds listed below?（）A
7 knotsB
10 knotsC
15 knotsD
20 knots
考题
单选题A “figure eight” knot is used to（）.A
be a stopperB
shorten a lineC
join lines of equal sizeD
keep a line from passing through a sheave
考题
单选题The knot used to join two lines of different diameter is a（）.A
square knotB
carrick bendC
becket bendD
sheepshank
考题
单选题The sea painter is secured in the lifeboat by（）.A
a turn around a forward thwart with a toggle pin thru the eyeB
a knot around a thwartC
an eye splice placed over one of the hooks of the releasing gearD
All of the above
考题
单选题On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）A
Clove hitchB
Figure-eight knotC
Fisherman's bendD
Overhand knot
考题
单选题According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knot service speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?（）A
6 knotsB
7 knotsC
9 knotsD
12 knots
考题
单选题At 2200 you take the following loran readings: 9960-W-15064.5; 9960-Y-43954.8. Which statement is TRUE? （）A
The current is floodingB
You are being set to the left of the trackC
The set is towards the southwestD
The drift is 0.6 knot.
考题
单选题The knot used to join two lines or two large hawsers for towing is called a（）.A
square knotB
carrick bendC
sheet bendD
bowline
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