What can be inferred about the man？
A. He earns less than ＄ 15,000 a year.
B. He's looking for a full-time job.
C. He thinks his rent is too high.
D. He plans to go back to graduate school.
用激光准直仪找正高层钢塔架时，激光准直仪的经纬仪部分的操作方法与()相同。
A. 光学水准仪
B. 电子全站仪
C. 光学经纬仪
D. 精密水准仪
What was Stowe's first published work？
A children's geography book.
B. A collection of travel stories.
C. A biographical sketch.
D. Uncle Tom's Cabin.
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