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【单选题】
当强酸阳离子交换树脂由Na + 型树脂变成H + 型时，或当强碱阴离子交换树脂由Cl - 型变成OH - 型时，其体积会（）。A.
增大
B.
不变
C.
缩小
D.
或大或小
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皮皮学刷刷变学霸
举一反三
【单选题】Why did the author's eldest daughter break into tears?
A.
Because she believed that her great efforts were ignored by her mother.
B.
Because she was afraid of being criticized by her mother.
C.
Because she didn't get solid As in all of her subjects.
D.
Because her mother articulated clearly that she was an idiot.
【简答题】A．She wants to exchange the MP3 player. B．She wants to buy a new MP3 player. C．She wants to get the MP3 repaired free of charge. D．She wants to get her money back.
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【简答题】阅读下面短文，根据以下提示：1）汉语提示，2)首字母提示，3）语境提示，在每个空格内填入一个 适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。 Dear editor, I am Evan from Canada. Being the eldest child in the family has its disadvantages. First of all,...
【简答题】（共10小题；每小题1分，满分10分） 阅读下面短文，根据以下提示：1）汉语提示，2)首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。 Dear editor, I am Evan from Canda. Being the eldest child in the family has its disadvanta...
【简答题】When Jeanne Calment entered the world in 1875, telephones and automobiles still lay in the future. Albert Einstein and Pablo Picasso were not yet born. The Eiffel Tower was 14 years from being built. ...
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