单项选择题


A．due to
B．contribute to
C．owing to
D．according to
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单项选择题
A．more seriousB．seriouslyC．worseD．less serious
A．more serious
B．seriously
C．worse
D．less serious
单项选择题
A．As farB．So farC．As longD．So as
A．As far
B．So far
C．As long
D．So as
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