【单选题】【消耗次数：1】
The ( ) hope to cooperate on this initial research.
①
historic
②
history
③
historical
④
historians
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相关题目
【单选题】
In language studies, linguists may investigate the history and stages of language change in a course of time. This is called _______ approach.It is historical lexicology.
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synchronic
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descriptive
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diachronic
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general
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I was stunned by the news, and my initial __________ was anger.
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impression
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reaction
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comment
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Tour leaders are ( ) with historical background, geography ,current affairs.
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well equipped
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well equip
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well-equipped
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They will engage in a ( ) of cultural activities, including organized excursion to important historical sites.
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various
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vary
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variety
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variation
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The ( )tour will include historical and cultural sites as well as visit to universities in Sydney.
①
15 day
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15-days
③
15 days
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15-day
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The research findings indicate that human ( ) develops rapidly in childhood.
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intellect
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innovation
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worth
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随机题目
【单选题】
下列关于巴比妥类的作用和应用的叙述中不正确的是
①
剂量不同时对中枢神经系统产生不同程度的抑制作用
②
均可用于抗惊厥
③
可用于麻醉或麻醉前给药
④
均可用于抗癫痫
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可诱导肝药酶，加速自身代谢
【单选题】
成瘾性是指
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药物引起的反应与个体体质有关，与用药剂量无关
②
等量药物引起和一般病人相似但强度更高的药理效应或毒性
③
用药一段时间后，病人对药物产生精神上依赖，中断用药，
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拮抗指数pA2 的定义是
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使激动药效应加强一倍时的拮抗药浓度的负对数
②
使激动药效应减弱一般时的拮抗药浓度的负对数
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使加倍浓度的激动药仍保持原有效应强度的拮抗药浓度的负对数
④
使激动药效应减弱至零时的拮抗药浓度的负对数
⑤
使加倍浓度的拮抗药仍保持原有效应强度的激动药浓度的负对数