GABA与GABAA受体结合后使下列哪种离子通道的开放频率增加（）
A．Na+
B．Cl-
C．Mg2+
D．Ca2+
E．K+
参考答案：B
. --- I’d like to make a __________ to Paris on the 25th.
--- Just a moment, please. Let me check for you.
A．reservation
B．conversation
C．revolution
D．conversation
该患儿复苏过程的环境温度应为
A．34℃
B．32℃
C．30℃
D．28℃
E．26℃
