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【单选题】
煮沸消毒时,为提高沸点达 105 ,通常可在水中加入
A.
亚硝酸钠
B.
醋酸钠
C.
氢氧化钠
D.
碳酸氢钠
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【单选题】fulfillment的词意
A.
履行,实现
B.
充满,满的
C.
完全的,完整的
D.
充分地,彻底地
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A.
正确
B.
错误
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