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下列主支气管损伤的临床特点中，错误的是
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下列不能作为主支气管损伤诊断依据的是
患者男，18岁。X线胸片检查发现左侧胸腔第6胸椎旁有一直径约6cm圆形肿块影。最可能的诊断是
以下不仅能够了解支气管扩张的形态，而且能够明确病变部位及范围的检查是
The supermarket is designed to lure customers into spending as much time as possible within its doors. The reason for this is simple:The longer you stay in the store, the more stuff you&39;ll see, and the more stuff you see, the more you&39;ll buy. And supermarkets contain a lot of stuff. The average supermarket, according to the Food Marketing Institute, carries some 44,00 different items, and many carry tens of thousands more. The sheer volume of available choice is enough to send shoppers into a state of information overload. According to brain-scan experiments, the demands of so much decision-making quickly become too much for us. After about 40 minutes of shopping, most people stop struggling to be rationally selective, and instead begin shopping emotionally - which is the point at which we accumulate the 50 percent of stuff in our cart that we never intended buying.
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