This kind of new medicine acts well ____ the lunga、onb、toc、againstd、in

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Thiskindofnewmedicineactswell____thelunga、onb、toc、againstd、inThiskindofnewmedicineactswell____thelun

This kind of new medicine acts well ____ the lunga、onb、toc、againstd、in
This kind of new medicine acts well ____ the lung
a、on
b、to
c、against
d、in

This kind of new medicine acts well ____ the lunga、onb、toc、againstd、in
用on是对的,表示对……有影响,有作用

a

in

选B,对器官用TO连接