单项选择题
A.45~50℃ B.105±5℃ C.105~110℃ D.145~150℃
A.1 B.1.5 C.2 D.2.5
A.0.5-1% B.1-2% C.2-3% D.3-5%
A.0.5% B.1% C.1.5% D.3%
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