A nurse performs cardiopulmonary resuscitation (CPR) for 1 minute on an infant without calling for assistance. In reassessing the infant after I minute of CPR, the nurse finds that he still isn’t breathing and that he has no pulse. The nurse should then

A. resume CPR beginning with breaths.
B. declare her efforts futile.
C. resume CPR beginning with chest compressions.
D. call for assistanc

市场起决定性作用，但政府同样要履行经济职能，要负责任。日前国家发布《关于保障当前蔬菜市场供应和价格基本稳定》的通知要求，对蔬菜价格上涨幅度过大的城市要启动对市长进行问责的机制。我国现有制度规定

①政府向人民负责 ②政府向人大负责 ③政府向国家负责 ④地方政府向中央政府负责

A．①②

B．③④

C．①③

D．②④