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外语
Water______be changed into gas, but it______be heated to its boiling point.
Water______be changed into gas, but it______be heated to its boiling point.
admin
2019-04-04
23
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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本试题收录于:
D类竞赛(专科)题库大学生英语竞赛(NECCS)分类
0
D类竞赛(专科)
大学生英语竞赛(NECCS)
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