搜题请搜索小程序“爱下问搜题”
问题
填空题
操作人员对所管辖区域内的设备必须做到“四懂”懂原理、懂结构、（）、懂用途.
答案
参考答案：懂性能
多项选择题
关于感觉性共济失调
A．闭目难立征
B．关节位置觉消失
C．眼震
D．区吐
E．为脊髓后索损害
查看答案
选择题
John had to have his car repaired in a garage because it ____ seriously.
A. damaged
B. was being damaged
C. had damaged
D. had been damaged
查看答案
