单项选择题

A. Because the water pressure is greater than air pressure.
B. Because the first Comets crashed in the water.
C. Because there is less damage when the explosion takes place under water.
D. Because it is the only way available for engineers to find out which part has cracked.
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单项选择题
A. Call a friend. B. Work on his car. C. Take a taxi. D. Walk to work.
A. Call a friend.
B. Work on his car.
C. Take a taxi.
D. Walk to work.
单项选择题
A. The director couldn’t give her an appointment right away.B. The office was closed the first time she went.C. The computers were out of service the first time she was there.D. She did not have acceptable identification with her on her first visit.
A. The director couldn’t give her an appointment right away.
B. The office was closed the first time she went.
C. The computers were out of service the first time she was there.
D. She did not have acceptable identification with her on her first visit.
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