第7题
从影响中药药理作用的观点来看,以下论述错误的是
A.中药应采收有时
B.中药炮制只是为了增加疗效
C.同样的药物和剂量,如果剂型不同其药理作用强度也可不同
D.同一种中药制成不同剂型,可直接影响药理作用强度和性质
E.道地药材的药理作用一般优于非正品药材
第8题
理查德正在决定要不要购买州发行的彩票,每张彩票的价格为1美元,取得回报的概率如下所示:
(1)如果理查德购买了一张彩票,它的期望收益是多少?方差呢?
(2)理查德的绰号是“无风险的草堆”,因为他对风险极度地规避。他会购买彩票吗?
(3)理查德获得了1000张彩票。讨论一下你将怎样确定他愿意卖出这1000张彩票的最低价格?
(4)从长期来看,给定彩票的价格和回报/概率表,你认为该州可以从该活动中得到什么?
Richard is deciding whether to buy a state lottery ticket. Each ticket costs $ 1, and the probability of winning payoff is given as follows:
a. What is the expected value of Richard' s payoff if he buys a lottery ticket? What is
the variance?
b. Richard' 8 nickname is“No-risk Rick". He is an extremely risk-averse individual. Would he buy the ticket?
e. Richard has been given 1000 lottery tickets. Discuss how you would determine the smallest amount for which he would be willing to sell all 1000 tickets.
d. In the long run, given the price of the lottery tickets and the probability/return table, what do you think the state would do about the lottery?
第9题
从影响中药药理作用的观点来看,以下论述错误的是
A.中药应采收有时
B.中药煎煮时间愈长,则煎出的成分愈多,作用愈强
C.中药经过炮制可增效或减毒
D.道地药材的药理作用一般优于非正品药材
E.同样的药物和剂量,如果剂型不同其药理作用强度也可不同
第10题
第11题
A.中药应采收有时
B.中药煎煮时间愈长,则煎出的成分愈多,作用愈强
C.中药经过炮制可增效或减毒
D.道地药材的药理作用一般优于非正品药材
E.同样的药物和剂量,如果剂型不同其药理作用强度也可不同