10kV油浸式变压器分接开关有3个档位，当电源电压为10.5kV时，分接开关应在（）位置
A.2档
B.1档
C.3档
参考答案：B
He had lost his temper and his health in the war and never found of them again.
A．neither
B．either
C．eath
D．all
气压高于大气压力其相对压力值为（）。
