He is afraid to face the difficulty he thinks he’ll have _________ the driving test tomorrow; he finds it difficult _________ rid of the worries.

A．passed; got

B．passing; to get

C．to pass; getting

D．in passing; in getting

纤维织物输送生产过程中产生的静电电压为（）。

A.160～100kV

B.15～80kV

C.5～100kV

D.高至025kV