单项选择题
A.1100mm B.1150mm C.1250mm D.1200mm
A.25～55mm B.25～60mm C.30～55mm D.30～60mm
A.40℃ B.70℃ C.90℃ D.l50℃
A.5～7g B.7～10g C.10～12g D.12~15g
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