单项选择题
A.-2.5〜-0.5℃B.-2.5〜-1.0℃C.-2.0〜-1.0℃D.-2.0〜-0.5℃
A.倒罐结束10min内B.倒罐结束8min内C.倒罐结束5min内D.倒罐结束15min内
A.＜4ppbB.＜5ppbC.＜3ppbD.＜6ppb
A.0.2〜0.3℃/hB.0.2〜0.4℃/hC.0.3〜0.4℃/hD.0.1〜0.2℃/h
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