英语六级
单选题第（28）题选
参考答案：E进入在线模考
developed。空格处是句子的谓语部分，后面有宾语social mechanisms，前面有助动词have，据此推断应填入动词的过去分词形式，与have一起构成现在完成时。前一句中提到人类在自己团队间运作时本能地就会团结一致，后一句承接上文进一步说明，人类也_________了一些能够对团队有益的社会机制，再结合备选项可知，动词过去分词形式的只有E.developed“发展”，符合发展形成了社会机制的语义，故为答案。备选项中B.assume“认定，假设”，C.compel“迫使”和H.implement“实施，贯彻”与上下文语法要求及语义不符，故均排除。
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