第11题: [单项选择]Which of the following might be the best title for this passage A. Evolution of Sleep. B. Two Types of Sleep. C. The Original Function of Sleep. D. Animals and Sleep. 参考答案:A 答案解析:这道主旨题考查的是对文章大意的理解。本文三段虽然讨论的内容各有侧重,但是都谈到了睡眠在各种动物中的差异以及发展的历史。B项只是概括了第二段的内容;C项只提及第三段的论述内容;D项似乎涵盖了三段内容,但
第12题: [单项选择]全站仪测距时,应瞄准()。 A. 棱镜杆棍部接地处 B. 棱镜杆中央 C. 棱镜中央 D. 棱镜下缘 参考答案:C
第33题: [单项选择]The best title of the passage is ______. A. Newborn babies can use both hands well B. Most human beings use their fight hands better C. Few human beings use their left hands D. We live in a fight - handed world 参考答案:D