A.K+ B.Na+ C.Ca+ D.Mg2+ E.Fe2+
A.乙酰膽堿 B.去甲腎上腺素 C.谷氨酸 D.內(nèi)啡肽 E.腎上腺素
A.相對(duì)不應(yīng)期→絕對(duì)不應(yīng)期→超常期→低常期 B.絕對(duì)不應(yīng)期→相對(duì)不應(yīng)期→低常期→超常期 C.絕對(duì)不應(yīng)期→低常期→相對(duì)不應(yīng)期→超常期 D.絕對(duì)不應(yīng)期→相對(duì)不應(yīng)期→超常期→低常期 E.絕對(duì)不應(yīng)期→超常期→低常期→相對(duì)不應(yīng)期