标题:
96-1-1
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作者:
diatomss
时间:
2005-4-2 20:19
标题:
96-1-1
sociologists have long recognized that social tension-------
A elements from group living D are normal elements of group life
选D, 但是tension 不是复数阿,我查了,是不可数的,为什么用are? A中也许elements是个动词呢?
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