The students must finish the test in ____.

A.three quarters of an hour timeB.three quarter’s of an hour timeC.three quarters of an hour’s timeD.

查看答案

Sometimes I can’t help wondering what’s the matter with Tom.

A.upsetsB.recognizesC.concernsD.Ignores

查看答案

-What were you doing at nine last night? -__________.

A.I was watching TV at that time.B.Yes, but I can’t afford the timeC.I did my homework.D.I am going t

查看答案

在旁油路节流调速回路中,节流阀同流面积A增大时,执行元件的速度U将( )。

在旁油路节流调速回路中,节流阀同流面积A增大时,执行元件的速度U将( )。A.增大B.降低C.不变D.都可以

查看答案

过电流是指流过电气设备和电缆的电流()额定值。

过电流是指流过电气设备和电缆的电流()额定值。A.小于B.等于C.超过D.远大于

查看答案