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问题
单项选择题
在一升0.110mol/L盐酸溶液中需加()mL水,方能得到0.100mol/L的盐酸溶液。
A.10
B.50
C.100
D.200
答案
参考答案:C
选择题
We _____ today not a victory of a party but a celebration of freedom, symbolizing an end as well as a beginning, signifying renewal as well as change.
A. enjoy
B. observe
C. watch
D. suspect
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填空题
香味增强剂有(),(),()。
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