As we know, physics______the science of energy.

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问题 As we know, physics______the science of energy.

选项 A、was
B、were
C、is
D、are

答案C

解析 本题考查的是主谓一致。以-ics结尾的学科名称,如:physics。mathematics,optics等等,通常用单数谓语。
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