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Water______be changed into gas, but it______be heated to its boiling point.A、mus
Water______be changed into gas, but it______be heated to its boiling point.A、mus
游客
2023-10-20
11
管理
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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