总需求曲线向右下方倾斜的原因是()
A.价格水平上升时,投资会减少
B.价格水平上升时,净出口会减少
C.价格水平上升时,需求会减少
D.以上几个因素都是
参考答案:C
测得我国长城考察站与南美洲乌斯怀亚港之间的图上距离约1.3厘米,比例尺为1:800km,则两地间的实际距离是 千米。
Which of the following was the only major war during the late eighteenth century().
A.The war in the Middle East.
B.The war in South Africa.
C.The war in Latin America.
D.The war between Britain and France.