I don't know ______ I should go or not.[_爱下问搜题

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问题选择题

I don't know ______ I should go or not.[ ]

A. whether

B. if

C. that

D. what

答案

答案：A

选择题

Simon is _______ English boy, and he studies in _______ China now. [ ]

A. a; /

B. an; /

C. an; the

D. a; the

单项选择题

给煤机属于锅炉（）设备。

A.本体

B.通风

C.制粉

D.附件