问题
选择题
It is these poisonous products _____ can cause the symptoms of the flu, such as headache and aching
muscles. [ ]
A. who
B. that
C. how
D. what
答案
答案：B
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It is these poisonous products _____ can cause the symptoms of the flu, such as headache and aching
muscles. [ ]
A. who
B. that
C. how
D. what
答案：B