下列属于诊断应用装置的是 ()
A.控制器
B.旋转阳极X线管
C.X线管组件
D.高压发生器
E.检查床
参考答案:E
The fog was so heavy this morning that drivers could hardly ______ the
things just ten meters away from them.
A.figure out
B.look out
C.make out
D.rule out
表达一个零件,必须画出主视图,其余视图和图形按需选用