He came to know that the knowledge from books can be useful only _____it is linked with pr
公共英语
已帮助 人
He came to know that the knowledge from books can be useful only _____it is linked with practice
A.as
B.when
C.while
D.for
请帮忙给出正确答案和分析,谢谢!
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参考答案:B他逐渐认识到,书本上的知识只有与实践相结合才能有用。 【难点】 as 作连词时,一般意为“正当?时候”。 While作连词时,一般连接的两个动作同时或几乎同时发生。when意为“当?时候”,前加only是为强调,only when是一习惯组合。
