—Really，I don’t know_______to join the army or to find a job after my graduation.

—Why don’t you_______ your parents’ advice? They will surely help you.

A．if;take

B．whether;follow

C．if;give

D．whether;seek

停工过程中工艺气体切出吸收塔的准备措施有（）

A、停止向外供氢

B、切出低变反应器

C、提高吸收塔液位

D、停止装置氢循环