2. 外语
  3. In what way did Dr. Cohen help explain why so many Americans die of drug reactions? In the last paragraph, the phrase "tinkerin

In what way did Dr. Cohen help explain why so many Americans die of drug reactions? In the last paragraph, the phrase "tinkerin

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问题 In what way did Dr. Cohen help explain why so many Americans die of drug reactions?
In the last paragraph, the phrase "tinkering with" may be replaced by______
选项 A、trifling with.
B、concurring with.
C、fiddling with.
D、playing with.
答案C
解析
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