【单选题】In the above figure, the movement from point a to point b reflects
A.
an increase in the price of pizza.
B.
an increase in the supply of pizza.
C.
an increase in the number of producers of pizza.
D.
a decrease in the cost of the tomato sauce used to produce pizza.
E.
a decrease in income if pizza is a normal good.
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 i ,则 A 截面的固端弯矩为( )
【单选题】In the above figure, if price is $16 there is
A.
a shortage of 250 units.
B.
a surplus of 250 units.
C.
a shortage of 125 units.
D.
equilibrium in the market.
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 2 i , 则 B 截面的固端弯矩为( )
【单选题】图示 AB 单跨梁,A 端发生单位角位移,设其线刚度为 i , 则B 截面的固端弯矩为( ) 。
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 i , 则 A 截面的固端弯矩为( )
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 2 i , 则 B 截面的固端弯矩为( )
【简答题】In the above figure, if the economy initially is at point A and government expenditure increases, in the short run the economy will move to pointA. B. B. C. C. A, that is, the equilibrium will NOT cha...
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 2 i , 则 B 截面的固端弯矩为( )