问题
单项选择题 B型题
升高血糖，减弱其降血糖作用的药物是（）
A.氯霉素
B.双香豆素
C.氯塞嗪
D.磺胺嘧啶
E.利福平
答案
参考答案：C
解析：与血浆蛋白结合率高的药物能与磺酰脲类竞争血浆蛋白的结合，从而使游离型药物增加，如双香豆素；肝药酶抑制剂可减慢磺酰脲类药物的代谢而延长其半衰期，如氯霉素；肝药酶诱导剂可加速磺酰脲类药物的代谢而减弱其降血糖作用，如利福平；噻嗪类和强利尿药以及皮质激素类可加速磺酰脲类药物代谢而减弱其降血糖作用。
e group.In a beehive there live three kinds of bees:the queen bee，the male bees and the worker bees.The worker bees are born to be hard-working，flying from flower to flower collecting nectar（花蜜），which is made up mostly of sugar mixed with water.Bees draw this nectar into their honey bags where some sort of liquid in their bodies turns the nectar into honey.The newly made honey flows slowly from the bees’ underside and then is stored in small cells in the hive.When the weather turns cold，and there are no flowers for them to collect nectar，the stored honey will see them through the winter months.People who raise bees and depend on bees for a living are thought of as beekeepers.A bee-keeper usually keeps hundreds of hives，and removes honey from hives and keeps it in glass bottles or jars.Honey usually appears as a clear golden-colored liquid，but this lie
s in the sort of flowers from which bees have taken the nectar.