The terrible disease already kills about one million people each year has grown resista

问题补充：

The terrible disease, already kills about one million people each year, has grown resistant standard medicine..

A. which, to

B. that, to

C. that, against

D. which, against

答案：

(答案→)A. which, to

B. that, to

C. that, against

D. which, against

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