出口（ ）必须在产地检验检疫机构办理报检手续。
A．玩具
B．小家电
C．食品
D．化妆品
参考答案：A,B,C,D
Do you think he will pass the exam if he _____ hard? [ ]
A. working
B. will work
C. works
D. worked
干粉灭火器适用于扑灭哪些火灾？
