【单选题】Which of the following is NOT true?
A.
When a person tries to help others, he must be clear that there is a real emergency.
B.
When a person tries to help others, he should know whether hey are worth his help.
C.
A person must take the full responsibility for the safety of those in emergencies if he wants to help.
D.
A person with a heart attack needs the most.
【单选题】Who tries to help him out of trouble?
【单选题】Who tries to help him out of trouble?
【简答题】“怒目瞪眼”可刺激____经。A. 肝 B.肺 C.脾 D.肾
【单选题】( )的婚礼仪式隆重,分别在女方家和男方家各举行一次,并在家庭中盛行“男主外、女主内”风俗。
【单选题】( )可分为 热解有机毒物、 非热解毒物 、 油脂氧化物以及 污染物反应产生的毒物。
【单选题】We try to help a person who has fainted by______.
B.
returning blood to his brain
C.
tightening his muscles
D.
holding him in an upright (垂直) position
【单选题】题: 应用转换开关控制异步电动机的启动,仃止时,每小时的接通次数()