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问题 单项选择题

描述当代流行总线结构中，基本概念表述正确的句子是（）。

A.当代流行总线结构不是标准总线

B.当代总线结构中，CPU和它私有的cache一起作为一个模块与总线相连

C.系统中只允许有一个这样的CPU模块

D.总线是处理器引脚的延伸

答案

参考答案：B

句型转换

句型转换：根据要求完成句子。

1. We usually go to the library on foot. (同义句转换)

    We usually _______ _______ the library.

2. It's time to have lunch. (同义句转换)

    It's time _______ _______.

3. There is some milk in the glass. (改为一般疑问句)

    _______ _______ _______ milk in the glass?

4. The train station is near here. (同义句转换)

    The train station in not _______ _______ here.

5. Tim often has lunch in the dining hall. (用now改写句子)

    Tim _______ _______ lunch in the dining hall now.

6. My brother likes Chinese best. (对画线部分提问)

    _______ _______ _______ your brother like best?

7. What's wrong with your watch? (同义句转换)

    What's _______ _______ with your watch?

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单项选择题

房间隔缺损患儿，出生时及新生儿早期可发生暂时性发绀是由于

A．右心房压力大于左心房，血液自右向左分流

B．体循环血流量少

C．右心血流量增多

D．肺循环充血

E．左心室血流量少
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