A:can
B:could
C:would
如图所示的直观图的平面图形ABCD是( )
在用“伏安法”测小灯泡额定功率的实验中,某小组用两节新干电池串联作为电源,且将其它仪器调试完好.
Look, this is my city. There are many bikes and buses on the streets. Let's count. There are ____ bikes and ____ buses. Look here, there are also ____ taxis and ____ cars. My city is big and beautiful!