When the New Year comes, children often ________ and get some gifts.

A．stand up

B．put up

C．dress up

D．set up

三类抗心绞痛药的抗心绞痛共性是

A．缩短射血时间

B．减慢心率

C．抑制心肌收缩力

D．减少心室容积

E．降低心肌耗氧量