网址：http://m.1010jiajiao.com/timu3_id_252052[举报]
A.24 mL
B.30 mL?
C.20 mL
D.18 mL??
A.24 mL B.30 mL C.20 mL D.18 mL
A.24 mL B.20 mL C.18 mL D.12 mL?
A．24 mL B．20 mL
C．18 mL D．12 mL