【单选题】 Children don't ______ understand what are reciting, but gradually it will have an impact on thinking.
A.necessarily
B.profitably
C.unnecessarily
D.unprofitably
网考网参考答案:A
网考网解析:
[解析] 由于空格前面有一个否定词not,所以后面不能用另一个否定词unnecessarily,因而只能选A。
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