注意刮板输送机卸煤情况，不准把（）等其他杂物拉入破碎机内。
A.煤
B.矸石
C.粉尘
D.大块矸石
参考答案：D
颅内感染引起惊厥不常见的病因是()
A．细菌性脑膜炎
B．寄生虫
C．原虫
D．衣原体
E．病毒
I'm surprised to see you smoking. You ________, I remember. [ ]
A. are not used to
B. were not used to
C. didn't use to
D. used not
