题目内容
3.听第7段材料,回答第9至11题.9.When did the man begin to feel sick?
A.Yesterday afternoon.
B.Last night.
C.This morning.
10.What might cause the man's sickness?
A.Dirty food.
B.Lack of sleep.
C.Too much alcohol.
11.Why does the woman think the matter should be looked into?
A.It has caused great losses.
B.It frightens people greatly.
C.It has happened twice.
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