Without the sun s light______the earth s surface no life could exist on the earth.A.warms

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Without the sun s light______the earth s surface, no life could exist on the earth.

A.warms

B.warmed

C.warming

D.to warm

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。