单选题
阅读下面短文,从短文后所给的[A]、[B]、[C]三个选项中选出能填入相应空白处的最佳选项。
When men grow older, their hair often begins to fall out. When hair begins to fall out {{U}}(41) {{/U}}old age, it is impossible to make it {{U}}(42) {{/U}} again. I know a man who found {{U}}(43) {{/U}} his hair was beginning to fail out on his fortieth birthday. He bought some ointment(药膏) and used it on his head. {{U}}(44) {{/U}} ointment was very expensive. It {{U}}(45) {{/U}} $50 for a small can ! He used the ointment on his head {{U}}(46) {{/U}} a day. Every day he {{U}}(47) {{/U}} into his mirror(镜子) to see {{U}}(48) {{/U}} is hair was growing again, but the ointment was {{U}}(49) {{/U}} good. Every day more and more hair fell out and {{U}}(50) {{/U}} there was no hair left on his head.
【正确答案】 B
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【正确答案】 C
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【正确答案】 A
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【正确答案】 C
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【正确答案】 B
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【正确答案】 A
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【正确答案】 C
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【正确答案】 B
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【正确答案】 A
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【正确答案】 C
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