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【简答题】
在常压下,20°C时氨在空气中的分压为69. 6mmHg,此时氨在混合气中的摩尔分率y为(),摩尔比 Y为()。
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【单选题】She made a note of it ______ she might forget.
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in order that
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【单选题】She made a note of it _________ she might forget.
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so that
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【单选题】She made a note of it she might forget.
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