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.
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Amay include melting the polar ice caps and a rising sea level
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Bmay include the melting of polar ice caps and the rising sea level
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Cmay include polar ice caps that are melting and sea levels that are rising
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Dinclude melting the polar ice caps and sea levels that are rising
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Einclude melting of the polar ice caps and a rise in sea level
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正确答案: E