Waterbe changed into gas, but itbe heated to its boiling point.A、mus

游客2023-10-20 42

问题 Water______be changed into gas, but it______be heated to its boiling point.

选项 A、must; can
B、may; needn’t
C、can; must
D、need; may

答案 C

解析水能够变成气体，但必须得它达到沸点时才可以。

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Water______be changed into gas, but it______be heated to its boiling point.A、mus