【单选题】细胞静息状态下,K+由膜内向膜外转运的形式属于()
【单选题】制定锻炼计划应遵循体育锻炼的基本原则,这些基本原则不包括( )。
【单选题】根据图片回答,下列说法错误的是
C.
硝酸钾溶液中含有少量氯化钠,可以用蒸发结晶的方法提纯硝酸钾
D.
20℃时,20克氯化钠投入50水中形成的氯化钠溶液是70克。
【简答题】Jim and Emily are (L4) _____________ in school activities,
【单选题】细胞静息状态下,K+由膜内向膜外转运的形式是
【简答题】Jim and Emily are ____4_____ in school activities, but they too spend most of their time at home.
【简答题】Jim and Emily are _________ in school activities, but they too spend most of their time at home.