【多选题】以下说法哪些是正确的?()。
B.
逻辑思维的方法主要包括分析与综合、比较与分类、抽象与概括、逻辑推理。
【单选题】Pierre’s friend Henri lives in a town where he has to pay 3 francs per glass of wine and 5 francs per loaf of bread. Henri consumes 5 glasses of wine and 4 loaves of bread per day. Bob has an income o...
A.
Bob and Henri are equally well off
B.
Henri is better off than Bob
C.
Bob is better off than Henri
D.
both of them violate the weak axiom of revealed preferences
【单选题】听力原文:W: Are you feeling better. Bob? M: Yes, but I still have a little headache. Q: What do you learn from the conversation? (24)
A.
Bob is feeling as bad as before.
C.
Bob is better than the woman.
【单选题】If a firm uses labor to produce output, the firm’s production function depicts the relationship between
A.
the number of workers and the quantity of output.
B.
marginal product and marginal cost.
C.
the maximum quantity that the firm can produce as it adds more capital to a fixed quantity of labor.
D.
fixed inputs and variable inputs in the short run.
【简答题】---- Is Bob still performing? ---- I'm afraid not. He is said________ the stage already as he has become an official A. to have left B. to leave C. to have been left D. to be left
【单选题】Besides Bob and Dave, there was still third one who said he was second to reach the the top. [ ]
【判断题】抽象思维的主要方法是分析与综合、抽象与概括、归纳与演绎、判断与推理。
【单选题】题目:利用递归函数调用方式,将所输入的 5 个字符,以相反顺序打印出来。 def output(s,l): if l == 0: return print (s[l-1]) output(______) s = input('Input a string:') l = len(s) output(s,l)
【单选题】A firm's average total cost is $30 at 5 units of output and $32 at 6 units of output. The marginal cost of producing the 6th unit is______.