If ____, the bird flu would produce a powerful poison that would kill the patients.(本题2.0分) A、 not treat B、 not treated C、 untreated D、 Both B an C

If ____, the bird flu would produce a powerful poison that would kill the patients.(本题2.0分)
A、 not treat
B、 not treated
C、 untreated
D、 Both B an C

出自：商丘师范学院-英语视听说（一）(高起专)

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