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第1题

The man told me that by the end of the week he _______ away from his hometown for 20 years. (A) has been (B) will ha
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第2题

适当增加膳食纤维摄入，可使血浆胆固醇水平降低(本题2.5分) A. 5%~18% B.  7%~20% C. 10%~25% D. 15%~25%
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第3题

No sooner _______ than they began to work. (A) they had arrived (B) they would arrive (C) had they arrived (D) w
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第4题

人体中的（  ）不是清除体内积聚自由基的重要物质？(本题2.5分) A. VitC B. VitE C. VitA D. β?胡萝卜素
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