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I rarely wear a raincoat because I spend most of my time in a car.
A:normally
B:seldom
C:frequently
D:usually
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A.Tobacco stocks also perked up as investors discounted fears of litigation(诉讼) from the US
B. So far，109 countries have signed it, and 12 have ratified it.
C. The impact of the treaty could be huge.
D. Countries that ratify(批准) it would be required to enact strict tobacco control policies.
E.The treaty calls for higher tobacco taxes, restrictions on smoking in public places, and more promotion of tobacco prevention and cessation programs.
F. The Senate must still approve the treaty before the US can implement its provisions.
The frame needs to be strong enough to support the engine.
A: bottom
B: surface
C: top
D: structure
A: bottom
B: surface
C: top
D: structure
It is the movement,not the color,of objects that excites the bull.
A:frightens
B:scares
C:confuses
D:arouses
A:frightens
B:scares
C:confuses
D:arouses
My principal concern is to get the job done fast.
A:serious
B:main
C:deep
D:particular
A:serious
B:main
C:deep
D:particular
共用题干
The Greatest Mystery of Wha1eg
The whale is a warm一blooded,air-breathing animal,giving birth to its young alive,sucking them一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
whale',body is one gigantic muscle.The blue whale'S pulling strength has been estimated________.(53)
400 horsepower. One specimen was reported to have towed（拖）。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 ships
have_(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)underwa-
ter as long as one hour. Two special 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.
_________(54)
A: number
B: degree
C: distance
D: rate
The Greatest Mystery of Wha1eg
The whale is a warm一blooded,air-breathing animal,giving birth to its young alive,sucking them一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
whale',body is one gigantic muscle.The blue whale'S pulling strength has been estimated________.(53)
400 horsepower. One specimen was reported to have towed（拖）。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 ships
have_(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)underwa-
ter as long as one hour. Two special 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.
_________(54)
A: number
B: degree
C: distance
D: rate
