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问题 单项选择题

美国视频电子标准协会定义了一个VGA扩展集，将显示方式标准化，这称为著名的()显示方式。

A．AVGA

B．SVGA

C．VESA

D．EGA

答案

参考答案：C

解析：VESA显示方式，是美国视频电子标准协会定义的一个VGA扩展集，将显示方式标准化。

连词成句

连词成句，注意所给的标点符号。

1.Think, I, pencil, it, his, is, (.)

_________________________________ .

2.know, you, do, how, him, (?)

_________________________________ ?

3.boy, friend, the, your, is, (?)

_________________________________ ?

4.not, it, this, gold, ring, my, (.)

_________________________________ .

5.in, the, that, your, and, lost, found, case, key, is, (?)

_________________________________ ?
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单项选择题

The achievements of the greatest minds in science could never have been reached if it had not been for the patient and accurate work of hundreds of other people.

A．has it not been

B．if it had been

C．if hasn't been

D．had it not been
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