Thailand is so hot that people like to go         every day.

A．skating

B．skiing

C．cycling

D．swimming

迷走神经兴奋可使心脏

A．心率减慢、传导减慢、心房肌不应期缩短
B．心率加快、传导减慢、心房肌不应期缩短
C．心率加快、传导加快、心房肌不应期缩短
D．心率减慢、传导减慢、心房肌不应期延长
E．心率减慢、传导加快、心房肌不应期缩短