题目内容

The switchboards for a-csystems differ from the d-cswitch gear in that the open type panels are generally() and the dead-front switch gear is the common rule.

A. permissibly
B. permissible
C. no permissible
D. not permissible

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How()the cargo at loading port?

A. about
B. with
C. on
D. from

可编程序控制器的简称为KMM。

A. 正确
B. 错误

猪宰后检验主要选择哪些淋巴结?

分段围堰法的上、下游围堰()布置。

A. 呈梯形
B. 呈矩形
C. 平行
D. 垂直

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