— .
A:Not unless she wants me to
B:Unless she wants me to
C:Not unless she wants me to keep
D:Unless she wants me to keep
如图甲是某种车载空气净化器,其工作过程如图乙所示,受污染的空气被吸入后,颗粒物进入电离区后带上某种电荷,然后在集尘器上被带电金属网捕获,再通过复合过滤网使空气净化,其中带电金属捕获颗粒物的工作原理是____,车载空气净化器的额定功率为4.8W,额定电压为12V,则它正常工作的电流为____A.
根据句意及所给提示完成句子
Our teacher is ____(像)our parents.
They are waiting for you at the bus s____.
There are 2,000 v____ in the village.
I often get up at h____ past six in the morning.
在如图所示电路中,电源电压保持不变,闭合开关后,当滑片P向右移动时,灯泡亮度____(选填“变亮”、“不变”或“变暗”);电压表的示数____;电流表的示数____;整个电路消耗的总功率____(以上三个空均选填“变大”、“变小”或“不变”).