The temperature can fall to -50°Cis, 50°Cbelow freezing point.A. Which B. It C. This D.

发布时间:2020-08-17 11:31:35

The temperature can fall to -50°C.      is, 50°Cbelow freezing point.
A. Which    B. It      C. This     D. That

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解析:选D。 That is = That is to say 换句话说,也就是说。
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