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问题 单项选择题 A1/A2型题

与多潘立酮的药理作用不符的是（）

A.阻断中枢巴胺受体而止吐

B.促进乙酰胆碱释放而加强胃肠蠕动

C.防止食物反流

D.对偏头痛及放射治疗引起的恶心、呕吐有效

E.对胃肠运动障碍性疾病有效

答案

参考答案：A

问答题

请揭示下面这副漫画的寓意，并为漫画拟一个题目。

寓意：                                  _____________________                  

题目：         ______________________
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单项选择题

Suppose the CPI basket contains only two kinds of goods (services): gasoline and taxicab service. In the base period, consumers bought 15 gallons of gasoline at $6 and 4 miles of taxicab at $3 each. In the current period, consumers buy 15 gallons of gasoline at $6.2 and 4 miles of taxicab at $2.5 each. The CPI for the current period is closest to:（）

A. 99.0.

B. 101.2.

C. 115.3.
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