题目内容

What is the most obvious feature of the parade in the opening ceremony？

A. Runners enter the stadium with torches.
B. Teams of different countries put on a wonderful display.
C. The host country marches in last.
D. There must be both men and women in all teams.

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男性，18岁，从高处坠落，颈部挫伤，出现不完全性截瘫，X线片显示，C5椎体骨折并向前脱位约30%，首选的治疗方案是

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