电子自动平衡显示仪表都是利用()者达到平衡状态时,由()确定未知量。
参考答案:电压平衡法;已知量。
— How are the wounded (受伤的) pupils in the accident?
— Sorry. Two of them ______ though the doctors tried to save them. [ ]
A. disappeared
B. died
C. failed
女性,30岁。睁眼困难伴复视2年,晨轻暮重,休息后好转。下列检查有助于明确诊断,除外()
A.新斯的明试验
B.疲劳试验
C.胸部CT扫描
D.乙酰胆碱受体抗体测定
E.椎管造影