单项选择题

A3/A4 题型首要的急救措施是大题题干:患者,男性,21岁。被人用刀刺伤右胸部。查体:右胸第4肋间腋中线处有3cm长的伤口,在伤口处可听到空气出入的“嘶、嘶”声,并见有血液流出,呼吸急促。
A、气管插管
B、剖胸探查术
C、胸腔闭式引流
D、建立静脉通道
E、封闭胸部伤口

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单项选择题

(5) Hangzhou Bus Group ( ) A.
has sold 40,000 bicycles to citizens and visitors since May 2008. B.
used the public bikes an average of 100,000 times a day. C.
has saved 7,500 tons of oil and reduced CO2, emission by 23,897 tons in a year. D.
has set up 1,600 public bicycle rental stations with more than 40,000bicycles.

病虫田间调查取样的方法主要有、、、和棋盘式取样。

答案： (1) 五点取样 (...