控制器的功能是( )。A．产生时序信号 B．从主存取出指令、分

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问题单项选择题

控制器的功能是( )。

A．产生时序信号

B．从主存取出指令、分析指令并产生相应的操作控制信号

C．从主存储器中取出指令并完成指令操作码译码

D．以上描述都不正确

答案

参考答案：C

句型转换

句型转化.

1.Are you hungry? My mother asked me.

My mother asked me _______ I _______hungry.

2．The fact is this. We have lost the game.

The fact is ______ we ______ ______the game.

3. His business was failed, and he owed a lot of money.

His business was failed, and he _____ ______ ______.

4. We need to reduce the cost of the party.

We need to _______ _______ the cost of the party.

5. I have never heard a more beautiful song than this.

This is ______ ______ ______ song I have ever heard.

单项选择题

患者，男性，15岁，20分钟前走路不慎跌倒在地。查体：右手无畸形，稍肿胀，无反常活动及骨擦感，右桡骨远端压痛，右腕关节活动障碍。下列哪项不正确( )

A．可排除骨折
B．需X线片以协助诊断
C．可用石膏外固定
D．不排除骨折
E．不应反复查骨擦感及反常活动