单项选择题

The work in the office was ________ by a constant stream of visitors.

A.confused
B.hampered
C.reversed
D.perplexed
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单项选择题
The doctor told the students that an ________ disease was one that could be passed from one person to another.
A.effective
B.inherent
C.infectious
D.overwhelming
单项选择题
Most authorities believe that urban street crime from a combination of poverty, poor education and a lack of opportunity. ________.
A.rises
B.raises
C.arises
D.arouses
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