不是片剂增塑剂的是（）
A.氮酮
B.甘油
C.丙二醇
D.玉米油
E.液状石蜡
参考答案：A
－Does the young man standing at the gate_____ the car?
－No. The car is _____ his father.
A．in possession of ；in the possession of
B．have possession of; take possession of
C．have possession of; in the possession of
D．in the possession of; take possession of
《煤矿安全规程》规定，掘进巷道不得采用（）通风。
A、扩散通风
B、风墙导风
C、水射流通风机通风
D、全风压通风
