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【单选题】
患儿男, 10岁。服驱虫药后突发上腹部钻顶样疼痛,呻吟,大汗,呕吐,持续数分钟后可缓解,但反复发作。查体:剑突下轻度深压痛,无腹胀。首先应考虑为A.
急性胆囊炎
B.
胆道蛔虫病
C.
急性胰腺炎
D.
急性胃穿孔
E.
急性肠梗阻
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举一反三
【单选题】Passage One Kodak’s decision to file for bankruptcy (破产) protection is a sad, though not unexpected, turning point for a leading American corporation that pioneered consumer photography and dominated ...
A.
To show its early attempt to reinvent itself.
B.
To show its effort to overcome complacency.
C.
To show its quick adaptation to the digital revolution.
D.
To show its will to compete with Japan’s Fuji photo.
【单选题】以下哪一类零件的视图表达外形,局部孔、槽可采用局部视图;键槽、花键结构需移除断面图,较长时采用断开画法,细小结构采用局部放大图。
A.
箱体
B.
轴
C.
支架
D.
法兰盘
【简答题】Kodak’s decision to file for bankruptcy ( 破产 ) protection is a sad, though not unexpected, turning point for a leading American corporation that pioneered consumer photography and dominated the film m...
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