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【单选题】
扶手带在扶手转向端的入口处最低点与地板之间的距离不应小于0.1m,且不大于()
A.
0.15mm
B.
0.25mm
C.
0.35mm
D.
0.45m
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举一反三
【单选题】含有疏水侧链的一组氨基酸是:
A.
色氨酸 精氨酸
B.
苯丙氨酸 异亮氨酸
C.
精氨酸 亮氨酸
D.
蛋氨酸 组氨酸
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A.
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B.
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A.
正确
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