汽轮发电机密封瓦在大修拆卸前,应该用氢气进行打压试验,以便检修时处理泄漏部分。
参考答案:错
I _______ yesterday. [ ]
A. had my bike repair
B. had my bike repairs
C. had my bike repaired
D. has my bike repaired
治疗病毒性脑炎,中医辨证论治的方式是( )
A.按八纲辨证
B.按卫气营血辨证
C.按脏腑辨证
D.按表里阴阳辨证
E.按三焦辨证