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问题 单项选择题 A1/A2型题

甲药对某受体有亲和力，无内在活性；乙药对该受体有亲和力，有内在活性，那么它们分别是（）

A．甲药为激动药，乙药为拮抗药

B．甲药为激动药，乙药为激动药

C．甲药为部分激动药，乙药为激动药

D．甲药为拮抗药，乙药为拮抗药

E．甲药为拮抗药，乙药为激动药

答案

参考答案：E

单项选择题

计算机在现代教育中的主要应用有计算机辅助教学、计算机模拟、多媒体教室和

A．网上教学和电子大学

B．家庭娱乐

C．电子试卷

D．以上都不是
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单项选择题

A candidate for public office has proposed a program of wealth transfers based on the principles of utilitarianism. In support of her proposal, she makes the following statements: Statement 1: "Increasing taxes on high income earners will cause them to work more hours to maintain their after-tax income, resulting in greater economic output. " Statement 2: "The government will need to hire people to manage and administer the wealth transfers. These new jobs will further expand economic output. " Are these statements correct or incorrect Statement 1 Statement 2（） ①A. Incorrect Correct ②B. Correct Incorrect ③C. Incorrect Incorrect

A. ①

B. ②

C. ③
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