单项选择题
A.25℃ B.40℃ C.50℃ D.60℃
A.185℃-223℃ B.190℃-240℃ C.190℃-228℃ D.190℃-223℃
A.-0.5 B.-0.4 C.-0.3 D.-0.05
A.120S B.60S C.600S D.300S
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