滴定分析采用指示剂法,指示剂的变色点是
A.滴定的化学计量点
B.滴定的终点
C.滴定的突跃
D.滴定的准确值
E.滴定反应的计量点
参考答案:B
After running for a mile yesterday, I was almost ____, not feeling bad, though. [ ]
A. out of shape
B. out of breath
C. out of control
D. out of order
电力系统在发生事故后应尽快调整运行方式,以恢复到正常运行状态必要时可采取拉闸限电等措施,以保证电力系统满足().
A、动态稳定储备
B、静态稳定储备
C、稳定储备
D、安全稳定限额