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【单选题】The price of mozzarella cheese, which is used in making pizza, increases. In the market for pizza you would expect that
A.
the demand for pizza would decrease and the price of pizza would fall.
B.
the demand for pizza would increase and the price of pizza would increase.
C.
the supply of pizza would increase and the price of pizza would decrease.
D.
the supply of pizza would decrease and the price of pizza would increase.
【单选题】f(x) 是定义在R上的偶函数, g(x) 是定义在R上的奇函数,已知 g(x)=f(x-1) ,若 g(-1)=2003 ,则 f(2004)=( )
A.
2003
B.
-2003
C.
2004
D.
-2004
【单选题】In Pizza Hut, a Pan Pizza was ______to serve in 5 minutes.
A.
guaranteed
B.
cut
C.
filled
D.
marked
【单选题】Put the following products in order from the least to the most elastic demand: Domino's pizza, pizza, and pizza from Domino's on the corner of Main Street and 8th Avenue.
A.
Domino's pizza; pizza; pizza from Domino's on the corner of Main Street and 8th Avenue
B.
pizza; pizza from Domino's on the corner of Main Street and 8th Avenue; Domino's pizza
C.
pizza; Domino's pizza; pizza from Domino's on the corner of Main Street and 8th Avenue
D.
pizza from Domino's on the corner of Main Street and 8th Avenue; Domino's pizza; pizza
【单选题】If a 6 percent increase in income results in a 10 percent increase in the quantity demanded of pizza, then the income elasticity of demand for pizza is
A.
negative and therefore pizza is an normal good.
B.
negative and therefore pizza is a inferior good.
C.
positive and therefore pizza is an inferior good.
D.
positive and therefore pizza is a normal good.
【简答题】M20-6H代号的含义是:公称直径为20,中径和顶径公差带都为________,________旋合长度的普通粗牙右旋内螺纹。
【单选题】Pizza and tacos are substitutes. If the price of a pizza rises, then _______.
A.
the demand for pizzas decreases and the demand for tacos increases
B.
the demand for both goods decreases
C.
the quantity of tacos demanded increases and the quantity of pizza demanded decreases
D.
the quantity of pizza demanded decreases and the demand for tacos increases
E.
the demand for each good decreases because both are normal goods
【单选题】Pizza is a normal good if the demand
A.
for pizza rises when income rises.
B.
for pizza rises when the price of pizza falls.
C.
curve for pizza slopes upward.
D.
curve for pizza shifts to the right when the price of burritos rises, assuming pizza and burritos are substitutes.
【简答题】M20×1.5左-6H/6g代号的含义是:普通细牙________螺纹,公称直径为20,螺距为1.5,中等旋合长度,中径和顶径公差带都为________的内螺纹与中径公差带和顶径公差带为6g的外螺纹的配合。
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