超过16小时的开放性胫骨骨折的处理方法中，下列哪项是正确的（）

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问题单项选择题 A1型题

A.清创，一期关闭伤口

B.采用钢板内固定，并一期关闭伤口

C.采用外固定支架固定

D.采用Ⅴ型针进行内固定

E.为预防感染，骨折内固定后，伤口留待二期缝合

答案

参考答案：C

选择题

A．蛋白质的水溶液具有胶体的性质

B．所有的蛋白质都能与HNO₃发生颜色反应

C．天然蛋白质水解的最终产物是α-氨基酸

D．天然蛋白质分子中既含-NH₂，又含-COOH

句型转换

句型转换。

1. Mike often goes hiking with his brother on weekends. (改为一般疑问句)

_______ Mike often _______ hiking with his brother on weekends?

2. Mary did her homework carefully last term. (改为否定句)

Mary _______ her homework carefully last night.

3. The students took the bus back home after camping. (改写同义句)

The students _______ back home ________ after camping.

4. Mary bought a souvenir for her brother. (对划线部分提问)

_______ Mary_______ for her brother?

5.He read English book last night, ________? (反意疑问句)