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问题 选择题

We have an English concert _____ July 5th each year. [ ]

A. in

B. at

C. on

D. of

答案

答案：C

单项选择题

(31) data effectively is crucial for success in today’s competitive environment. Managers must know how to use a variety of tools. Integrated data takes information from different sources and puts it together in a meaningful and useful way. One of the difficulties of this is the (32) in hardware and software. (33) integration uses a base document that contains copies of other objects. (34) integration uses a base document that contains the current or most recent version of the source document it contains. (35) provides an overview of the program written in "plain" English, without the computer syntax.

A．Simulated

B．Duplicated

C．Dynamic

D．Static
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单项选择题

过滤器在正常使用时，主要控制过滤器的（）在控制指标范围内。

A、温度

B、压力

C、压差

D、流量
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