单选题：阅读以上短文，回答题According to the passage, which of the following i

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阅读以上短文，回答题
According to the passage, which of the following is a very likely cause of ulcer in men?
A Smoking and stress.
B Drinking and smoking.
C Genes and children.　　
D Use of a certain medicine.

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__________ is the first American black woman writer who won

__________ is the first American black woman writer who won the Nobel Prize for

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Paragraph 4 __________．

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请在（72）处填上最佳答案。

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Tom is still full of beans at 70.

Tom is still full of beans at 70. A．A courageous B．B kind C．C energetic D．D sing

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