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当前学科:危重病人的监测技术、结果解读与综合分析
题目:
单选
患者急性心肌梗死出现规律的宽大畸形QRS波,考虑出现()
A . 窦性心动过速
B . 室性期前收缩
C . 心房颤动
D . 室性心动过速
E . 三度房室传导阻滞
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从系统的动态特性角度来分析:产品的组成零部件和装配精度高,但系统的精度并不一定就高的原因。
Every year just after Christmas the January Sales start.All the shops reduce their pricesand for two weeks,they are full of people looking for bargains.My husband and I do not nor-mally go to the sales as we don’t like crowds and in any case are short of money as we have tobuy lots of Christmas presents. Last year,however,I took my husband with me to the sales at the large shop in the centerof London.We both needed some new clothes and were hoping to find a television set.Whenwe got to station.So I left my husband and started looking around the shops.Unfortunately allthe clothes were in very large sizes and SO were not suitable for me.But I did buy.a televisionat a very cheap price,SO I felt quite pleased with myself. When I arrived at the station,my husband was not there.So I sat down in a nearby cafeto have a cup of tea.I quickly finished my tea when I saw my husband and went out to meethim.He looked very happy.Then I saw he Was carrying a large and heavy cardboard box.“Oh,dear!”I thought.Yes,we had no new clothes but two televisions.We shall not be going to the sales again. 根据以上内容,回答题。In January__________.
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