【单选题】Suppose you manage a corner grocery store. If peanut butter is an inferior good, what do you suppose would happen to the price and quantity of peanut butter as incomes fall during an economic recessio...
A.
. The price would increase and the quantity would decrease.
B.
. The price and quantity would both increase.
C.
. The price and quantity would both decrease.
D.
. The price would decrease and the quantity would increase.
【单选题】146 下列论述正确的有( )。 ( A )表面粗糙度属于表面微观性质的形状误差。 ( B )表面粗糙度属于表面宏观性质的形状误差。 ( C )表面粗糙度属于表面波纹度误差。 ( D )经过磨削加工所得表面比车削加工所得表面的表面粗糙度值大。 ( E )介于表面宏观形状误差与微观形状误差之间的是波纹度误差。