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【判断题】
带式输送机可垂直输送固体物料。A.
正确
B.
错误
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【简答题】听力原文：Woman: I tried this pair of shoes and I think I like this colour and style. Please pack them. By the way, I notice that all the goods in your shop are at 20% discount. And this price tag says 20 ...
【简答题】听力原文： I tried this pair of shoes and I think I like this colour and style. Please pack them. By the way, I notice that all the goods in your shop are at 20% discount. And this price tag says ￡20 a pai...
【单选题】关于力和力的投影，下列哪种说法是正确的( )
A.
力是矢量，力的投影是代数量
B.
力是代数量，力的投影是矢量
C.
力和力的投影都是矢量
D.
力和力的投影都是代数量
【简答题】听力原文：I tried this pair of shoes and I think I like this color and style. Please pack them. By the way, I notice that all the goods in your shop are at 20% discount. And this price tag says 20 pounds a...
【简答题】阑尾的常见位置，怎样寻找阑尾？
【简答题】患者,男,20岁,腹痛发作始于上腹部,逐渐移向脐部,最后转移并局限于右下腹,伴发热、恶心及呕吐。一般检查:右下腹有固定压痛点,在右髂前上棘至脐连线中外1/3交界处有压痛与反跳痛。配合其他辅助检查,初步诊断为急性阑尾炎。请问: (1)阑尾位于何处?阑尾常见的位置有哪些?阑尾根部的体表投影如何? (2)如何才能迅速的找到阑尾?
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