易燃易爆化学物品的储存单位必须建立（）制度。
A、入库验收
B、发货检查
C、出入库登记
D、收货检验
E、定时检查
参考答案：A, B, C, E
— Could you tell me _____ tomorrow morning?
— Well, it will start at 9 o'clock. [ ]
A. when the film will start
B. where will the film starts
C. when will the film start
D. where the film will start
亚急性感染性心内膜炎的赘生物最常见的附着部位是
A．三尖瓣边缘
B．二尖瓣和主动脉瓣
C．肺动脉瓣边缘
D．三尖瓣基底部
E．以上都不是
