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【单选题】
下列关于痔的诊断中哪错误的A.
齿状线是区分内、外痔的唯一标志
B.
外痔在没有发生血栓以前，一般不会出现剧痛
C.
混合痔具有内、外痔的症状和特征
D.
内痔出现静脉破裂就可引起剧痛
E.
痔是指肛管皮下或直肠下端静脉扩张迂曲而形成的静脉团
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【简答题】平键的两侧面为工作面,楔键的 表面为工作面。
【单选题】Dictionaries have to change _____ languages change. [ ]
A.
when
B.
with
C.
as
D.
what
【简答题】Life is full of change, and this leads to growth. Change is what keeps our lives moving, and allows us to achieve what we desire and deserve. Like it or not, we need to be willing to go with the flow,...
【单选题】What will the present change depend on?
A.
Technological innovation in this domain.
B.
What social and cultural changes will take place.
C.
Whether consumers greet this change with enough enthusiasm.
D.
The changes concern many aspects.
【简答题】The twentieth century saw great change. In your opinion, what is one change that should be remembered about the twentieth century? Write an essay of about 400 words to state your opinion. In the first...
【简答题】肾单位袢由 ________________ 、 ____________ 和 ____________ 构成。
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