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问题 单项选择题

CPU执行OUT DX，AL指令时，______的值输出到地址总线上。

A．AL寄存器

B．AX寄存器

C．DL寄存器

D．DX寄存器

答案

参考答案：D

解析：使用OUT指令时，只能使用AL或AX接收和发送指令，对于地址小于256时采用直接寻址，而对于地址大于等于256时，需要将地址存入DX，使用间接寻址。

填空题

单词拼写。

1. You can get a lot of useful________(信息) from the Internet.

2. The teacher begins his lesson with a________(描绘) of our school.

3. By the time the police arrived, the thief had________(消失).

4. The old farmer is always________(精力充沛的) as if he never knew tiredness.

5. When we turn on the TV, we can hardly________(避免) watching advertisements, which sometimes trouble us.6. We________(感激) your efforts for the development of the company.

7. Some________(专家) think that language learning is much easier for children as their tongues are more flexible.

8. ________(骆驼) are much better than horses for travelling in the desert area.

9. The________(被遗弃的) disabled children should be taken good care of by the whole society.

10. Seventy percent of the people who were________(调查) suffered from this disease.
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选择题

下列属于生物的是：  [ ]

A．会弹钢琴的机器人

B．逐年增粗长高的小树

C．慢慢长大的钟乳石

D．生物化石
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