“安全第一，预防为主”是安全生产工作的( )。
A．方针政策
B．方向
C．范围
D．关键
参考答案：A
Having studied abroad for three years, the girl didn’t change much, ________ a bit fatter.[ ]
A. only to get
B. only getting
C. to have got
D. having been got
互感器
