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【单选题】
一般非简单流体的偏心因子（）A.
=0
B.
>0
C.
<0< /div>
D.
>1
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举一反三
【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?
A.
The bartender.
B.
A regular of the bar.
C.
The old man.
D.
None of the above.
【简答题】“怒目瞪眼”可刺激____经。A. 肝 B.肺 C.脾 D.肾
【单选题】We try to help a person who has fainted by______.
A.
rubbing his head
B.
returning blood to his brain
C.
tightening his muscles
D.
holding him in an upright (垂直) position
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