单选题
1.Must I be home before seven? --- (_______) .
A.No, you needn’t B.No, you mustn’t C.OK
D.no, you won’t 答案: A
2.It was on the beach (_______) Miss White found the cat lying dead.
A.where B.which C.on which D.that 答案: D
3.The Buck（降压式变换器） is a _____ converter.
A.voltage step-up B.current step-down C.current step-up D.resistance 答案: C
4.A desktop computer’s sound card sends signals to external _____.
A.printer B.speaker C.Modem D.keyboard 答案: B
5.All the characteristics that distinguish birds (_______) other animals can be traced to prehistoric times.
A.to
B.between C.for D.from 答案: D
6.(_______) I do is for your good. You should know this all the time.
A.All what B.All which C.Whichever D.Whatever 答案: D
7.The discussion (_______) a wide range of subjects.
A.covered B.conveyed C.filled D.concluded 答案: A
8.Beijing is one of _____ cities in China.
A.large B.larger
C.the largest D.largest 答案: C
9.The overall transfer function is the ratio of the transform of the controlled variable to the transform of _____.
A.the controlled variable B.the reference input C.the feedback
D.the output variable 答案: B
10.Data stored in RAM _____ when the power of the computer is turned off.
A.is held permanently B.permanently disappears C.is held temporarily D.temporarily disappears 答案: B
11.They are proud (_______) their success.
A.of B.in C.on D.over 答案: A
12.The marine corps are (_______) with the latest weapons and they are sure to fulfill the mission.
A.equipped B.charged C.guarded D.impressed 答案: A
13.She would make a teacher far (_______) to the average.
A.superior B.better C.favorable D.popular 答案: A
奥鹏西安交通大学2020年9月《专业英语》考前练兵.doc
