当有人触电而停止呼吸，心脏仍跳动，应采取的抢救措施是就地立即作（）。
参考答案：人工呼吸
家用炒菜铁锅用水清洗放置后，出现红棕色的锈斑，在此变化过程中不发生的化学反应是
A．4Fe（OH）2+2H2O+O2═4Fe（OH）3
B．2Fe+2H2O+O2═2Fe（OH）2
C．2H2O+O2+4e-═4OH-
D．Fe-3e-═Fe3+
-How did it _________ that you made such a silly mistake?
-I myself haven't figured it out yet. [ ]
A. bring about
B.come about
C. come across
D. come on
