may应该在什么情况下用

marco_polo

GWD3-Q19:

Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level.

A.      may include melting the polar ice caps and a rising sea level

B.       may include the melting of polar ice caps and the rising sea level

C.      may include polar ice caps that are melting and sea levels that are rising

D.      include melting the polar ice caps and sea levels that are rising

E.       include melting of the polar ice caps and a rise in sea level

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答案选E，may应该在什么情况下用

heslaw

这里的问题不是may

而是possible和may 语义重复