单项选择题
A.2.5~3cmB.2.8~3cmC.3~3.5cmD.2.8~3.5cm
A.4~11Pa·sB.4~12Pa·sC.4~12.5Pa·sD.4~13Pa·s
A.50°-85°B.55°-85°C.60°-85°D.65°-85°