—Miss Li has taught ____ English for abo

题型:选择题

问题:

—Miss Li has taught ____ English for about 3years.

—You are lucky. ____ is a very good teacher.

A.ours, She

B.our, He

C.us, He

D.us, She

考点:物主代词人称代词it的用法
题型:选择题

用科学记数法表示537万正确的是(  )

A.5.37×104

B.5.37×105

C.5.37×106

D.5.37×107

题型:选择题

C4I是由哪些系统集成?

题型:选择题

绕在卷轴上的光导纤维

题型:选择题

中间再热的参数选择,对机组有何影响?

题型:选择题

三次站08时观测时或08时观测后换自记纸时,若记录出现跳跃式变化,均可不进行跳跃式变化订正。()

更多题库