由于扩散过程是依靠浓度梯度而进行的,所以水中离子浓度是影响扩散速度的重要因素。()A.正确B.错误

由于扩散过程是依靠浓度梯度而进行的,所以水中离子浓度是影响扩散速度的重要因素。()A.正确B.错误

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A foreigner’s first impression of the U.S. is likely to be that everyone is i...

A foreigner’s first impression of the U.S. is likely to be that everyone is i...

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When John and Victoria Falls arrived in New York City for one-year stay, they...

When John and Victoria Falls arrived in New York City for one-year stay, they...

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Long, long ago there was no zero. To write the number sixty-three people wrot...

Long, long ago there was no zero. To write the number sixty-three people wrot...

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I often dreamed about Pisa when I was a boy. I read about the famous building...

I often dreamed about Pisa when I was a boy. I read about the famous building...

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