—Tang Lin is very bright and studies very hard as well.

—It’s no _________he always gets the first place in the examination.

A．question

B．doubt

C．problem

D．wonder

按动前洗涤开关时，雨刮系统如何动作？（）

A.雨刮同时工作

B.雨刮稍后动作

C.停止按洗涤开关，雨刮也停止工作

D.停止按洗涤开关时，雨刮会继续动作几个周期