在继电保护计算中,不仅要考虑最大运行方式下的三相短路电流,而且还应验算最小运行方式下的两相短路或单相短路电流。( )
参考答案:对
I don’t think she noticed the headmaster just at that moment, for she _______ the game on her cellphone.
A.played
B.was playing
C.is playing
D.has been playing
下列颜色中彩度最高的是()
A.白色
B.粉红色
C.大红色
D.黑色