It was just at the moment __________he worked out the problem that he had long b

It was just at the moment __________he worked out the problem that he had long been puzzled about.

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请阅读短文,完成此题。Here's a warning from health experts: Sitting is deadly. Scientists a

请阅读短文,完成此题。Here's a warning from health experts: Sitting is deadly. Scientists are increasingly warn

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请阅读短文,完成此题。When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that

请阅读短文,完成此题。When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that it varies only slig

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When the teacher gives feedback to students in teaching writing, he/she should N

When the teacher gives feedback to students in teaching writing, he/she should NOT__________.

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--I can make it to your concert around 9 o'clock tomorrow night.--Well, by the t

--I can make it to your concert around 9 o'clock tomorrow night.--Well, by the time you arrive, I __

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