Large amounts of food ______ wasted in our school everyday, but the poor in many countries ______ no access to drinking water.
A:is; has
B:are; have
C:is; have
D:are; has
如图,课外探究小组的同学,把一条大约10m长电线的两端连在一个灵敏电流表的两个接线柱上,形成闭合回路.两个同学迅速摇动这条电线,可以发电使电流表发生偏转.你认为这两个同学朝哪个方向站立时,发电的可能性比较大?( )