=375×1.4
=525(千克)
答:这块地共收小麦525千克.
如图(a)中AB是一条点电荷电场中的电场线,图(b)则是放在电场线上A、B处的检验电荷的电荷量与所受电场力数量间的函数图线,由此可以判定( )
—When and where were you born?
—I was born ________ October 1st,1997 ________ Beijing.