仪器使用完后,要()
A、旋钮复位
B、清理周边卫生
C、旋钮不必复位
D、取下仪器状态标签
参考答案:A, B
It's important to write these goals down______ merely think about them. [ ]
A. more than
B. rather than
C. other than
D. less than
哪些投照部位需用滤线器()
A.手
B.足
C.头部
D.小腿
E.上臂