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reminds; of reminds; to remembers; of remembers; to
）Exa＞Exb （ ）Exa沿x负方向，Exb沿x正方向 （ ）同一点电荷在a、b两点受到的电场力方向相反 （ ）将正电荷沿x轴从a移动到b的过程中，电场力先做正功后做负功 
It’s fine today It’s Sunday today. Everything goes well,thanks. Have a good time!
everything but anything but nothing but something but
Something Everything Anything Nothing
reminds me of reminds me to remembers me of remembers me to
was happening happens has happened happened
was happening happens has happened happened
was happening happens has happened happened
all something some everything
reminds me of reminds me to remembers me of remembers me to
was happening happens has happened happened
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