动作电位(action potential)
参考答案:
细胞膜受刺激后,在静息电位基础上膜两侧电位发生的快速、可逆的倒转和复原。
Please be quiet. We are not allowed _______ much noise in the reading room. [ ]
A. to make
B. make
C. making
D. to making
发电机、蓄电池均为电路中的电源部分。()