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【单选题】
判断口对口人工呼吸法是否有效,首先观察是A.
口唇紫绀是否改善
B.
瞳孔是否缩小
C.
吹气时阻力大小
D.
看到病人胸廓升起
E.
剑突下隆起
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举一反三
【单选题】She hasn’t _______ decided if she will come or not. Let’s wait for her answer.
A.
already
B.
yet
C.
ever
D.
never
【单选题】Bill Gates is one of those who are said to be ______ , able to rack huge profits at every turn.
A.
on the ship
B.
on the plane
C.
on the gravy train
D.
on the rocks
【单选题】No one knew ________. [ ]
A.
she will come
B.
if she would come
C.
if she would come or not
D.
whether she will come or not
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