题目内容
Our professor told us that salt water _____ at a lower temperature than fresh water.
A.is freezing | B.was frozen | C.freezes | D.froze |
C
解析
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题目内容
Our professor told us that salt water _____ at a lower temperature than fresh water.
A.is freezing | B.was frozen | C.freezes | D.froze |
C
解析