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【单选题】
听力原文：W: To tell the truth, Tony, it never occurs to me that you are an athlete. M: Oh, really? Most people who meet me, including some friends of mine, don't think so either. Q: What do we learn from the conversation? (13)A.
Most of the man's friends are athletes.
B.
Few people share the woman's opinion.
C.
The man doesn't look like a sportsman.
D.
The woman doubts the man's athletic ability.
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举一反三
【单选题】下列叙述中哪条与氟尿嘧啶无关
A.
化学名为5-氟-2，4-二羟基嘧啶
B.
属抗代谢类抗肿瘤药
C.
是尿嘧啶的生物电子等排体
D.
与溴试液作用生成淡黄沉淀
E.
与重铬酸钾的硫酸溶液，微热后，玻璃试管的表面可被腐蚀
【单选题】Which of the following is right according to the passage?
A.
Some coast lines do not have two tides each day.
B.
Tides are not affected by the shape of coast line.
C.
The sun has as much effect on tides as does the moon.
D.
Tides usually rise to the same land day after day.
【单选题】According to the passage, all of the following statements are true EXCEPT ______ .
A.
The two strands making up DNA's double helix can find each other easily in a complex chemical mixture
B.
Evolution has solved the problem of building a computer smaller than a speck of dust a long time before
C.
DNA not only programs cells to replicate themselves but also instructs them how to assemble individual molecules into new materials
D.
The read-head components for computer hard drives are constructed by means of the technology known as a molecular beam epitaxy
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