题目内容
The researehers delermine what type of plants the virus can infect(感染) and_________insects can carry the virus.
A.those B.why C.which D.how
C
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
The researehers delermine what type of plants the virus can infect(感染) and_________insects can carry the virus.
A.those B.why C.which D.how
C
|