更多"Why sharks are useful for humans"的相关试题:
[单项选择]Why are sharks useful for humans
A. For their tasty meat.
B. For the principle of their defense system against disease.
C. For their solid skin.
D. For the principle of their birth modes.
[单项选择]Why sharks are useful for humans
A. Their tasty meat.
B. The principle of their defense system against disease.
C. Their solid skin.
D. The principle of their birth modes.
[单项选择]In which point some sharks are similar with humans
A. Bone structure.
B. Smell ability.
C. Birth mode.
D. Recovery ability against disease.
[单项选择]Why do sharks normally swim between ten and twenty miles off the coast of Britain
A. They prefer warm water to cold water.
B. They see best in deep water.
C. They are afraid of man.
D. That is where their food is.
[单项选择]Why does breathing become difficult for humans during a tornado
A. The wind becomes fast and hot.
B. Air pressure gets steadily lower.
C. The black area moves closer.
D. They are knocked to the ground.
[单项选择]Early humans made up the "why" stories because they ______.
A. were trying to explain the things around them
B. wished to develop their imagination
C. were afraid that Demeter would bring more winter
D. wanted to make the angry gods happy
