强效镇痛药，镇痛效能是吗啡的100倍，起效快，作用时间短，与氟哌利多合用产生"神经松弛镇痛"的是（）
A.芬太尼
B.纳络酮
C.吗啡
D.美沙酮
E.曲马朵
参考答案：A
解析：氟哌利多用于兴奋、躁狂症状为主的精神分裂症，并可用于麻醉前给药或与镇痛药芬太尼合用，进行神经安定镇痛术，所以1题答案为A；纳络酮对4型阿片受体亚型都有拮抗作用，所以2题答案为B。
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| Mary: Hello, this is Mary speaking. Nancy: Hi, Mary. Speaking. Mary: 1 your pictures. Australia is very beautiful. _2 is the weather in Australia? Nancy: It's 3 . Mary: That's great. It's snowy in Beijing. Nancy: It's summer in Australia but winter in Beijing. That's 4 . Mary: Yes, I like winter. Some boys and girls 5 snow. Nancy: Great! I like snow. In Australia it 6 snow. Mary: That sounds bad. Now Beijing 7 very cold. I am 8 the scarf and gloves (手套). Autumn (秋季) is the best season in Beijing. The weather is not too 9 or too cold. Nancy: Autumn here is nice, too. Goodbye! Mary: 10 . | ||||
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