单项选择题
A.5℃ B.10℃ C.7℃ D.3℃
A.0.2-0.5m B.0.40-0.6m C.0.4-0.8m D.0.5-1.0m
A.135℃ B.145℃ C.150℃ D.160℃
A.0.5m B.0.7m C.1m D.1.2m
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