John is ______ hardworking than his sister but he failed in the exam.[1998]A.no lessB.no

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John is ______ hardworking than his sister, but he failed in the exam.[1998]

A.no less

B.no more

C.not less

D.no so

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。