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【单选题】
食管癌好发部位是A.
颈段食管
B.
胸段食管上段
C.
胸段食管中段
D.
胸段食管下段
E.
腹段食管
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反馈参考答案：
举一反三
【判断题】If a country can make something better or more cheaply than it can others, it has an absolute advantage()
A.
正确
B.
错误
【单选题】According to the text, 'no country can afford to throw in the towel' probably means ______.
A.
No country can admit to be defeated by Australia.
B.
No country has the resources to beat Australia.
C.
No country can imitate Australia's outdoor image.
D.
No country has the same advantages with Australia.
【简答题】A．It is customary to throw money towards the performer. B．The man is rich and can afford to throw money towards the performer. C．The man doesn't want his money any more. D．The performer hasn't showed ...
【简答题】选区激光熔化成型工艺流程的最后工序是 。
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