A:4
B:5
C:6
古诗文默写。
图中阴影部分为夜半球,则北京时间为( )
在生长季节,玉米植株被雨后大风吹倒一段时间后会呈现如图所示的生长状况.该图不能说明( )
It's generous __ ___ them to donate money to UNICEF. They think it important _____ them to help poor children go to school.