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【单选题】
男性，34岁，右第4-7肋骨折，呼吸极度困难，紫绀，出冷汗。检查：BP65/40mmHg，右胸饱满，气管向左侧移位，叩诊，颈、胸部有广泛皮下气肿，首要的处理方法是A.
胸腔穿刺排气减压
B.
气管插管辅助呼吸
C.
输血、补液
D.
吸氧
E.
立即开胸探查
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【单选题】----- You shouldn’t have talked back to our teacher like that. It was awfully impolite. ----- You are right. I _________ crazy at that moment.
A.
could have been
B.
can be
C.
must have been
D.
should have been
【单选题】Do you often use a computer _____ your homework? [ ]
A.
write
B.
writes
C.
to write
D.
writing
【单选题】"You look awfully exhausted." "Yes, I non-stop until two o'clock in the morning."
A.
have been working
B.
worked
C.
was working
D.
have worked
【单选题】---You _________to our Mom like that. It was awfully impolite. ---You are right. I must have been crazy at that moment.
A.
mustn’t have talked
B.
needn’t have talked
C.
shouldn’t have talked
D.
may not have talked
【单选题】O'Leary is writing a computer program that______.
A.
uses math to increase the speed of calculation
B.
tells the identity of a criminal in a certain area
C.
provides the crime records of a given city
D.
shows changes in criminals' position
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