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问题 多项选择题

根据《通信设备安装工程施工监理暂行规定》，设备安装施工监理工程师应要求承包单位完成（）后，填报相应的安装工序报验单。

A.加电测试

B.通信设备安装

C.线缆布放

D.电缆走道

答案

参考答案：B, C, D

单项选择题

Password is a(n) (1) series of characters that enables a user (2) a file, computer or program. On multi - user systems, (3) user must enter his or her password (4) the computer will respond to commands. The password helps ensure that unauthorized users do not access the computer. In addition, data files and programs may require a password.

Ideally, the password should be something (5) could guess. In practice, most people choose a password that is easy to remember, such as their name or their initials. This is one reason it is relatively easy to break into most computer system.

4（）

A．after

B．when

C．while

D．before
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单项选择题

培育猪种和从国外引进猪种一般在（）月龄、体重65-75千克时才出现性成熟。

A、4-5

B、5-6

C、6-7

D、7-8
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