2. 外语
  3. Almost ______ substances expand in volume when heated and contract when cooled.

Almost ______ substances expand in volume when heated and contract when cooled.

admin2013-04-25  50
问题 Almost ______ substances expand in volume when heated and contract when cooled.
选项 A、all
B、they all
C、all of
D、all are
答案A
解析
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