20春西交《专业英语》在线作业答案1

(单选题)1: She would make a teacher far (_______) to the average.

A: superior

B: better

C: favorable

D: popular

正确答案: A

(单选题)2: The system's characteristic equation can be used to determine _____ of a linear time-invariant system.

A: the stability

B: magnitude of the steady-state error

C: the controllability

D: the observability

正确答案: A

(单选题)3: What would you like to have, meat or fish? --- (_______) .

A: Either will do

B: Yes, I like meat

C: Yes, I like fish

D: No, they are not my favorite

正确答案: A

(单选题)4: Tom didn’t come to class yesterday. He (_______) ill.

A: must be

B: should be

C: must have been

D: should have been

正确答案: C

(单选题)5: ________ a concert next Saturday?

A: There will be

B: Will there be

C: There can be

D: There are

正确答案: B

(单选题)6: In the form of ( ) the output is continuously fed back and compared with the reference input.

A: continuous control

B: discontinuous control

C: discrete-data control

D: sampled-data control

正确答案: A