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【判断题】
Benjamin was worried that he couldn’t put the key into the boxA.
正确
B.
错误
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【单选题】The little baby was very excited ( )the sight of his mother.
A.
in
B.
at
C.
with
D.
to
【简答题】Which of the following is implied in the first paragraph?［A］ People used to be f2. Which of the following is implied in the first paragraph? ［A］ People used to be forced to work under whips. ［B］ The a...
【单选题】When were the chemicals first used in America?
A.
Before the American Revolution.
B.
Over thirty years ago.
C.
Over two hundred years ago.
D.
Before the discovery of potassium nitrate.
【单选题】The T-shirt was first used as uniform by the ______ in America.
A.
Air Forces
B.
Army
C.
Navy
D.
Police
【简答题】松驰荷载理论建立的是()力学体系。
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