题目内容

有些词是兼类词,例如“文明”从语法功能看兼属()和()。

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数据通信中用几段电缆连接时应尽量保持(),各接点必须要接触良好。

Which three statements describe the functionality of the DO_KEY built-in?()

A. It accepts both a built-in and a key name as argument.
B. If no key trigger is defined, the specified built-in executes.
C. Its parameter must be specified in upper case, enclosed in single quotation marks.
D. It performs the same task as if you pressed the function key associated with the specified argument.
E. It executes the key trigger that corresponds to the built-in specified as its parameter.&e

施工单位根据安全目标管理层层分解的原则,保证措施也要层层相应落实。

A. 正确
B. 错误

在不考虑泄漏的情况下,泵在单位时间内排出的液体体积称为泵的理论流量。

A. 正确
B. 错误

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