单项选择题
A.1~2mlB.1~3mlC.1~4mlD.1~5.5mlE.1~6ml
A.1mmB.2mmC.3mmD.4mmE.5mm
A.1mmB.2mmC.5mmD.1cmE.2cm
A.0~1mmB.1~2mmC.2~4mmD.1~4mmE.1~5mm
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