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搜题
【单选题】
小儿唾液分泌逐渐增多,能产生较多淀粉酶的时间是
A.
1个月
B.
2个月
C.
3-4个月
D.
5-6个月
E.
7-8个月
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A.
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B.
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D.
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A.
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B.
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C.
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A.
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B.
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C.
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D.
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A.
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B.
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A.
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E.
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