单项选择题

A ____ of events were caused by the traffic accident. A.
dose B.
copy C.
train D.
sense

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单项选择题
3#卫生间在地漏周围1m范围内应做（）坡度坡向地漏。
A.0.005
B.0.01
C.无法判断
D.0.02
问答题
Modern linguistics focuses on the present day language, and it will be possible to describe language from a perspective.
答案：synchronic