In China, __________ pressure to pass ________ exams gives students the impression that learning comes from textbooks.

A．/; /

B．the; the

C．the; /

D．/; the

在进行正常刹车时，停留刹车关断活门应处于（）位置.

A.关闭

B.打开

C.打开或关闭

D.以上答案都不对