单项选择题
A.40℃ B.293℃ C.60K D.586K
A.1/27 B.1/273 C.1/300 D.1/573
A.1.24倍 B.0.24倍 C.4倍 D.3倍
A.2倍 B.40/273倍 C.40/293倍 D.333/293倍
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