2. 外语
  3. It’s important to remember that nutrients have to work ______, and to take too much of one or another can be useless or even dan

It’s important to remember that nutrients have to work ______, and to take too much of one or another can be useless or even dan

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问题 It’s important to remember that nutrients have to work ______, and to take too much of one or another can be useless or even dangerous.
选项 A、in check
B、in retrospect
C、in concert
D、in vogue
答案C
解析
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