B.电场线越密,电场强度越小
C.沿着电场线方向,电势越来越低
D.电荷在沿电场线方向移动时,电势能减小
答案:C
Mr Li began to teach in this school, _______, some time later, she became popular with the teachers and students for her excellent teaching levels.
A.where
B.when
C.that
D.which
下列选项中,没有“数据表视图”的对象是( )
A.表
B.查询
C.窗体
D.报表