某空间存在匀强磁场和匀强电场。一个带电粒子 ( 不计重力 ) 以一定初速度射入该空间后，做匀速直线运动； 若仅撤除电场， 则该粒子做匀速圆周运动，下列因素与完成上述两类运动无关的是（）
A、磁场和电场的方向C
暂无解析
TheobjectiveoftheChartistMovementwasdemocraticrightsforallmen,andittookitsnamefrom“________”.
AtrendthatoccursatthesametimewiththemovementtotheSouthandtheWeastoftheUnitedStatesis________.
Robotsdifferfromautomaticmachines________aftercompletionofonespecifictask，theycanbereprogrammedbyacomputertodoanotherone.
Thatproposalisessentiallyirrelevant________theissueathand.
翻译：WorldWarIIwasmorecomplexthanWorldWarI,whichwasacollisionamongtheimperialistpowersoverthespoilsofmarket,resourcesandterritories.
