47 According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who（D）
(E) indicates that everyone alive today might be a descendant from a single female ancestor who
答案是D, 我没看D, 就排除了它, 不是maybe是口语,
不能用在GMAT书面语中吗?
没有这样一说，只是说在有其他的表示可能性的动词的情况下，就不太倾向于用may，会用比如说probably之类的，不管怎么样这都不是原则性上的错误，这题主要的错误还是descend的用法
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