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问题 单项选择题

处方：维生素C104g，碳酸氢钠49g，亚硫酸二钠2g，依地酸二钠0.05g，注射用水1000ml。

关于药物制剂稳定性，叙述错误的是（）

A.药物制剂稳定性主要包括化学稳定性、物理稳定性和生物稳定性

B.药物稳定性的试验方法包括高温试验、高湿度试验、强光照射试验、经典恒温法

C.药物的降解速度受溶剂的影响，但与离子强度无关

D.固体制剂的赋形剂可能影响药物的稳定性

E.表面活性剂可使一些容易水解的药物稳定

F.药物制剂的有效期通常是指药物在室温下降解10%所需要的时间

答案

参考答案：C

单项选择题 共用题干题

男性，48岁，1年前开始逐渐出现颈后酸痛不适，双手麻木，不灵活，使用筷子困难。行走时有踩棉花感，易跌倒。查体：前臂外侧痛觉减退，四肢肌张张力增高，双Hoffmann实验（+），踝阵挛（+），Babinski（+）。辅助检查：X线检查见颈5-6生理曲度消失，局部轻度后凸畸形，间隙狭窄，增生硬化，椎管矢状径15mm。

进一步检查应首选（）

A.颈椎CT

B.颈椎MRI

C.脊髓造影

D.诱发电位

E.上肢肌电图
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单项选择题

(Ⅰ)

In the dining room of my grandfather’ s house stood his heavy clock. Meals in the dining room were a (21) for our four generations to become one. My grandfather’ s clock always stood like a trusted old family friend, (22) us playing jokes and tellingstories, which was already a (23) of our life.

When I was a child, the old clock interested me. I watched and listened to it during (24) I was surprised how at (25) times of the day, the clock would strike three times, six times or more, with a wonderful great (26) that echoed throughout the house. The clock chimed year after year, a part of my (27) , a part of my heart.

Even more (28) to me was my grandfather’s special action each day. He meticulously (29) the clock with a special key each day. The key was magic to me. It (30) our family’ s magnificent clock ticking and striking all year round.

30（）

A. made

B. controlled

C. kept

D. fixed
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