【单选题】下列有关神经兴奋的叙述,正确的是
B.
组织液中Na+浓度增大,则神经元的静息电位减小
C.
.突触间隙中的神经递质经主动运输穿过突触后膜而传递兴奋
D.
神经纤维接受刺激产生的兴奋以电信号的形式传导
【简答题】给水管道系统 包括( )、输水管道、( ),配水管网及水塔、( )等调节构筑物。
【单选题】Which of the following is NOT one of the three stages of the process of perception?
【单选题】Which of the three sentences is wrong?
A.
Freud’s mother and the King Josef usually spent their summers in the same place.
B.
Freud’s mother’s birthday and the King’s birthday were on the same day.
C.
Freud’s mother knew that the band was playing for the King.
【单选题】设地面上有A、B两点,两点的高程分别为HA=19.186m,HB=24.754m,则A、B两点的高差hAB=