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【单选题】
不可能出现的混合性酸碱平衡紊乱是A.
代谢性酸中毒合并代谢性碱中毒
B.
呼吸性酸中毒合并呼吸性碱中毒
C.
代谢性酸中毒合并呼吸性酸中毒
D.
代谢性酸中毒合并呼吸性碱中毒
E.
代谢性碱中毒合并呼吸性碱中毒
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反馈参考答案：
举一反三
【简答题】跨区间无缝线路绝缘接头，采用厂制()钢轨。
【单选题】听力原文：W: Um, I'll read it for you. Yes, it's a large textile company that seems to import from abroad. That's odd, isn't it? What else?... A sales assistant is needed. They say the salary is really goo...
A.
Watching ads on TV.
B.
Listening to ads on radio.
C.
Reading job ads in a newspaper.
D.
Being interviewed for a job in a company.
【简答题】无缝道岔的钢轨绝缘接头采用()接头。
【简答题】曲线线路上两股钢轨的接头应当对齐。()
【单选题】You have to read the manual carefully first, otherwise you______have difficulty using the cell phone.
A.
should
B.
will
C.
might
D.
may
【简答题】有缝线路轨道哪些位置不得有钢轨接头?
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