單項(xiàng)選擇題
A.0.002 B.0.003 C.0.005 D.0.007
A.20mg、100mg B.20mg、100g C.50mg、100mg D.50mg、100g
A.18cm B.11cm C.9cm
A.775℃±15℃ B.775℃±25℃ C.725℃±25℃ D.725℃±15℃
A.1min B.3min C.5min D.7min
A.6mm~8mm B.8mm~10mm C.5mm~10mm D.3mm~4mm
A.20min~30min B.30min~45min C.1.5h~2.0h D.1h~1.5h
A.溫度 B.時(shí)間 C.溫度和時(shí)間
A.膠質(zhì) B.運(yùn)動(dòng)粘度 C.灰分 D.機(jī)械雜質(zhì)
A.2mL~4mL B.1mL~3mL C.1mL~2mL D.3mL~5mL