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【单选题】
以下可能是非周期信号的频谱密度函数的量纲的是?A.
cm
B.
1/cm
C.
Hz
D.
cm/Hz
E.
1/Hz
F.
Hz/cm
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【简答题】The policeman (警察) took her there in a police ear. She ______ there in a police car by the policeman.
【单选题】After ______ car accident, ______ wounded were sent to ______ hospital immediately.
A.
the; the; the
B.
the; a; a
C.
the; ×; the
D.
×; the; the
【单选题】The 6 th Car Exhibition ______ at Nanjing International Expo Center on April 28, 2013.
A.
holds
B.
held
C.
was held
D.
will be held
【简答题】具有典型意义的节奏叫做( )
【单选题】Four policemen rode past on their motorbikes，then came the television broadcasting car，and ______ the marathon runners.
A.
finally
B.
in the end
C.
at last
D.
last
【单选题】Where was the driver of the sports car when the accident happened?
A.
Inside the car.
B.
At the foot of the hill.
C.
In the garage.
D.
In the supermarket.
【简答题】阅读理解。 The story happened in a street in an English town. A policeman stops a car. In the car there is a visitor from another country. Policeman (holding up his hand): Stop! Visitor (in car): What's th...
【简答题】Shanghai: Car rentals（出租） are becoming more and more popular as an inexpensive way of taking to the roads. Business people, foreigners and families alike are good use of the growing indus...
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