【单选题】If prices are fixed, an increase in aggregate expenditures results in an increase in equilibrium GDP that
A.
is greater than the change in aggregate expenditure.
B.
is equal to the change in aggregate expenditure.
C.
is less than the change in aggregate expenditure.
D.
has no necessary relationship to the size of the change in aggregate expenditure.
【简答题】Suppose that real consumption expenditures in a nation are $10,000 million, real investment expenditures are $8,000 million, real government expenditures are $5,000 million, real expenditures on impor...
【判断题】Ordinary repairs are expenditures that keep assets in normal, good operating condition.
【单选题】有关消化性溃疡的病理,以下哪种不正确
D.
消化性溃疡多单发,胃溃疡直径一般<2.5cm
【多选题】Which of the following best explains why research and development expenditures in the construction industry lag behind expenditures in some other industries.
A.
companies see little need to spend money since most competitors are not investing either.
B.
Owners and designers tend to be conservative in specifying new products,materials, and methods
C.
New technologies are not time-proven and put the project at risk.
D.
It is often dificult to protect from competitors new technologies that are successfully perfected
【判断题】静态链表与动态链表在元素的插入、删除上类似,不需做元素的移动。