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【单选题】
支气管扩张病情严重时,最常见的典型体征是()A.
奇脉
B.
口唇紫绀
C.
双肺布满哮鸣音
D.
双肺布满湿啰音
E.
固定而持久的湿啰音
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举一反三
【简答题】用半波带法讨论单缝衍射暗条纹中心的条件时,与中央明条纹旁第三个暗条纹中心相对应的半波带数目是 __________。
【单选题】Geek Co is developing a new product and expects to be able to capitalise the costs. Which of the following would preclude capitalisation of the costs?
A.
Development of the product is not yet complete.
B.
No patent has yet been registered in respect of the product.
C.
No sales contracts have yet been signed in relation to the product.
D.
It has not been possible to reliably allocate costs to development of the product.
【简答题】用半波带法讨论单缝衍射暗条纹中心的条件时,与中央明条纹旁第二个暗条纹中心相对应 的半波带的数目是 。
【简答题】解释“运动副”的概念。
【单选题】Geek is developing a new product and expects to be able to capitalise the costs. Which one of the following would preclude capitalisation of the costs?
A.
Development of the product is not yet complete
B.
No patent has yet been registered in respect of the product
C.
No sales contracts have yet been signed in relation to the product
D.
It has not been possible to reliably allocate costs to development of the product
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