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【简答题】
将0.90mol/L的 溶液100mL与0.10mol/L的 溶液300mL混合,所制得的 溶液的物质的量浓度为 。
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举一反三
【单选题】We often compare ourselves __others. It makes us tired. So we 'd better make a comparison.
A.
with
B.
to
C.
for
【简答题】When (compare) naughty children with others, we often pay attention to their shortcoming without noticing their ability.
【单选题】We often use __________ tables to compare exact values.
A.
prose
B.
numerical
C.
appendix
D.
summary
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