Jim is very popular in our class because he is _________clever ____________helpful.A.not only; but alsoB.either; orC.neither; norD.too; to
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A解析词义辨析。not only; but also不但……而且；either; or或者……或者；neither; nor 既不……也不；too; to太…..而不能。句意：Jim在我们班很受欢迎，因为他不但聪明，而且乐于助人。所以选A。