问题
单项选择题 A1型题
下面哪种物质可引起肝血管肉瘤（）
A.二异氰酸甲苯酯
B.含氟塑料
C.氯乙烯
D.聚丙烯
E.聚氯乙烯
答案
参考答案：C
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下面哪种物质可引起肝血管肉瘤（）
A.二异氰酸甲苯酯
B.含氟塑料
C.氯乙烯
D.聚丙烯
E.聚氯乙烯
参考答案：C
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| A shopkeeper closed his shop in the evening and went home. He was very 1 , but just as he went to 2 , the telephone rang. A man's 3 said, "What time do you open your shop, sir?" The shopkeeper was 4 about the phone call. He did not answer it and went 5 to bed. A few minutes later, the telephone 6 . He got up and went to pick up the phone and found that 7 was the same man asking the same question. The shopkeeper angrily answered,"You needn't ask me that for (因为) I 8 tonight. It's late." " 9 , I want to go 10 ," the man said. | ||||
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