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问题 单项选择题

对建设项目环境管理提出的"三同时"要求，是指环境治理设施与项目主体工程必须（ 　）。

A．同时开工、同时竣工、同时投产使用

B．同时设汁、同时施工、同时投产使用

C．同时开工、同时竣工、同时验收

D．同时设计、同时开工、同时验收

答案

参考答案：B

解析：【解析】环境影响评价坚持“三同时”原则，既环境治理设施与项目主体工程同时设汁、同时施工、同时投产使用。

单项选择题

We know a computer is a machine that processes data (stored in main memory) into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in (71) . Numbers are stored as binary numbers, with each bit’s positional value significant. A computer’s main memory is divided into bytes, words or both (depending on the system), and each of these basic storage units is assigned an (72) . Using this address, the processor can read or write selected bytes or words.

The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During (73) , the instruction control unit fetches an instruction from main memory; during (74) , the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic (75)

（71）处填（）。

A．a binary code

B．words

C．registers

D．positional values
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问答题 简答题

影响输粉机故障的原因有哪些？
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