Our professor told us that salt water _____ at a lower temperature than fresh wa

题型：不详难度：来源：

Our professor told us that salt water _____ at a lower temperature than fresh water.

A．is freezing

B．was frozen

C．freezes

D．froze

答案

C

解析

考查时态，句意：我们的教授告诉我们盐水和淡水相比在非常低的温度下会结冰。根据语境，这是一种自然现象，所以应用一般现在时态。选C。