A wonder drug was______from this common herb as a cure for cancer.

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问题 A wonder drug was______from this common herb as a cure for cancer.

选项 A、gambled
B、deduced
C、extracted
D、injected

答案C

解析 gambled把……孤注一掷；deduced演绎，推论；extracted采掘；提取，提炼；injected引入；投入。

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