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【单选题】
果实呈 长卵形至卵形 ,稍扁。长 1 . 5~2 . 5cm,顶端锐尖,表面有多数突起的小斑点,两面各有一条明显的纵沟,种子多数,细长,一侧有翅。此药材是A.
连翘
B.
栀子
C.
小茴香
D.
金樱子
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皮皮学刷刷变学霸
举一反三
【简答题】Ray Starr has the utility function U ( x , y ) = y /(100 - x ). a. Does Ray prefer more to less of both goods? b. Draw a diagram showing Ray’s indifference curves corresponding to the utility levels U...
【简答题】下列（ ）单证是代理人同航空公司交接的单证。
【单选题】The price of X is $20 and the price of Y is $40. Based on the above graph, if U 1 is the highest level of utility the consumer can achieve, what is the consumer's income?
A.
$ 480
B.
$ 600
C.
$ 800
D.
$1,200
【单选题】Wanda Littlemore’s utility function is U ( x , y ) = x + 46 y - 2 y 2 . Her income is $135. If the price of x is $1 and the price of y is $18, how many units of good x will Wanda demand?
A.
5
B.
12
C.
0
D.
9
【单选题】Robert's utility function is U(x,y) = min{4x, 2x+y}. The price of x is $3 and the price of y is $1. Robert's income over curve is
A.
a ray from the origin with a slope of 2.
B.
a line parallel to the x axis
C.
a line parallel to the y axis.
D.
the same as his Engel curve for x
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