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【单选题】
听力原文：M: Hello, Mrs. White, what can I do for you? W: I don't know what's the matter with me. I'm always feeling tired, I'm usually worn out at the end of the day. What do we learn from the conversation?A.
The woman is a close friend of the man.
B.
The woman has been working too hard.
C.
The woman is seeing a doctor.
D.
The woman is tired of her work.
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举一反三
【单选题】I could see from his work that he had made a ______ study of his subject. Otherwise, he couldn't have made such a rapid progress.
A.
stable
B.
delicate
C.
profound
D.
arbitrary
【单选题】下列各项内容与黄土高原人地关系恶性循环示意图中代号相对应的是 [ ]
A.
人均耕地减少，燃料需求增加
B.
农作物产量下降
C.
破坏植被，开垦荒地，砍伐森林
D.
生态环境恶化，自然灾害频繁
【简答题】下列选项中，三级基坑为开挖深度小于（ ）m，且周围环境无特别要求时的基坑。