到6個(gè)星期大時(shí)，大多數(shù)嬰兒開(kāi)始表現(xiàn)出近似于日夜分明的睡覺(jué)模式。By about 6 weeks of age, most babies begin to show something approximating a day/night sleeping pattern.神經(jīng)元的本體, 其作用近似于一種線性閥值器件.The body of a neuron. Acts approximately as a linear threshold...