题目内容

What kind of transportation do you use most often?

A. What vehicle
B. How many means of transportation
C. Which means of transportation

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I've been here for only two weeks.

A. since only two weeks
B. since only two weeks ago
C. in only two weeks

It took me some time to learn the American way of living.

A. I spent some time learning
B. It cost me a lot of time to learn
C. I paid some time to learn

指出下列平面的特点:1) 2x+3y=02)x-y-z=03) 2y-3z-4=04) y-3=0

汉文帝时期,汉朝政府首次尝试垄断经营盐和铁。

A. 对
B. 错

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