找考题网-背景图
未分类题

【C3】
A．What's more
B．Hence
C．But
D．However

A.What's
B.Hence
C．But
D．However


【参考答案】

D
A项What'smore可表示递进；B项Hence意为“因此，所以”，表示因果关系。文中上一段提到“学习是动物的社会生活的一部分”，第二段接着讲“学习发生在动物小时候的印象中期”，两段间不存在递进或因果关系。But在表转折时一般不与句子分开，所以D项}towever为正确。
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