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China is a wonderful place and there is()to see and enjoy.A.a lot ofB.manyC.muchD.many m..
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Mary forgot()a letter to her mother, so she wrote to her just now.A.writingB.to writeC.t..
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That place is()the south of the city.A.atB.inC.onD.to..
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钳形表不使用时,应将量程放在最低档。..
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葡萄胎清宫术后hCG降至正常的时间平均为A.1周B.2周C.4周D.6周E.9周..
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When I was a child, I enjoyed()picturebooks.A.readB.to readC.readsD.reading..
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