以下()是数字量
A、有功、无功
B、电压、电流
C、开关、刀闸位置
D、遥控命令
E、变压器档位
参考答案:C, D, E
They also ask the students to present their independent ideas instead of _____________ memorizing numbers and facts.
A.totally
B.clearly
C.merely
D.thoroughly
在消化道中,淀粉和蛋白质被消化的起始部位分别是( )
A.小肠和口腔
B.口腔和小肠
C.食道和胃
D.口腔和胃