将某植物花冠切成大小和形状相同的细条，分为a、b、c、d、e和f组（每组的细条数相等），取上述6组细条分别置于不同浓度的蔗糖溶液中，浸泡相同时间后测量各组花冠细条的长度，结果如图所示。假如蔗糖溶液与花

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将某植物花冠切成大小和形状相同的细条，分为a、b、c、d、e和f组（每组的细条数相等），取上述6组细条分别置于不同浓度的蔗糖溶液中，浸泡相同时间后测量各组花冠细条的长度，结果如图所示。假如蔗糖溶液与花冠细胞之间只有水分交换，则( )

A：实验后，a组液泡中的溶质浓度比b组的高

B：浸泡导致f组细胞中液泡的失水量小于b组的

C：a组细胞放在蔗糖溶液中失水或吸水所耗ATP大于b组

D：使细条在浸泡前后长度不变的蔗糖浓度介于0.4～0.5mol﹒L^-1之间

上一题下一题 0.0难度选择题更新时间:2017-05-08 11:02:32

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D

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As we know, Chongqing has changed a lot. Most of the people feel much safer now. More and more trees are being planted in the city. And every day you can see many old people play sports everywhere. The change makes the people in the city live a happy life. The small survey below is from the people who live in Chongqing. One hundred persons were chosen to answer the questions last week.

What they want	Health	Safety	Food
What they want	52%	33%	15%
Where they like to live	In a quieter place	In a busier place	In a greener place
Where they like to live	15%	5%	80%
What they think of working in the city	Bad	Good	No idea
What they think of working in the city	8%	80%	12%
Whether they plan to change their living places	Yes	No	Difficult to say
Whether they plan to change their living places	39%	41%	20%

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