—Who's that? —_____.[ ] A. It's my frien_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

—Who's that?

—_____.[ ]

A. It's my friend

B. It's letter A

C. It's a girl

答案

答案：A

解答题

容积也是体积．______．

判断题

用假想的剖切平面将机件的某处切断，仅画出断面的图形称为剖视图。