题目内容

日光灯启动后,去掉起辉器,灯管不亮。

A. 对
B. 错

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灭火器不使用时应放在仓库统一保管。

A. 对
B. 错

在选用保险丝时,应使额定电流等于或稍小于电路中的最大正常工作电流。

A. 对
B. 错

Chapter 4How Computers Process InformationA computer's function is to follow specific commands, or instruction sets. However, processing multiple commands can be time-consuming. The stored-program concept allows instructions to be efficiently stored in machine ( 1 ).Storing instructions in the machine's register allows information to be accessed more quickly. Registers are made of ( 2 ), or binary digits. Since bits are so small, they are typically used in groups. A word is the most commonly used grouping of bits. It is often made up of 32 or 64 bits, depending on the ( 3 ). The speed at which data is accessed depends upon the available number of bits.Information stored in the long-term memory of the computer must also be available. A data transfer instruction allows data to transfer from the ( 4 ) to the registers. Then it becomes easily accessible and can be retrieved more quickly. The data must have a destination, or address, that is also sent by the data transfer instruction.When data is put into the computer, various instructions are executed. A basic block is the most fundamental set of instructions, More complex sets include conditional ( 5 ), Unlike basic blocks, these can only execute after previous instructions are complete.

中国取得抗日战争胜利的原因主要有()

A. 以爱国主义为核心的民族精神是胜利的决定因素
B. 中国共产党的中流砥柱作用是关键
C. 全民族抗战是重要法宝
D. 世界反法西斯力量的同情和支持

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