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【单选题】
It's time ______ class. Please be quiet! [ ]A.
to have
B.
for have
C.
of having
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举一反三
【单选题】When water freezes, it expands approximately _______ percent in volume.
A.
seven
B.
eight
C.
nine
D.
six
【简答题】Water turns _______ ice when it freezes.
【单选题】When water freezes, it expands approximately ______ percent in volume.
A.
seven
B.
eight
C.
nine
D.
ten
【简答题】Antifreeze is a liquid(液体) that is added to water to keep it from freezing． When water freezes and turns to ice，it expands(膨胀)．The force of water expanding is so great that it will break the hardest m...
【简答题】When water freezes, it becomes larger instead of (small) ______ in amount of space.
【单选题】公众的分类多种多样,其中当公众面临着由一个组织的行为引起的共同问题,而他们本身已经意识到这种问题的存在时,是
A.
外部公众
B.
知晓公众
C.
非公众
D.
行动公众
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