假设预算赤字减少150亿美元，国内储蓄减少200亿美元，出口增加100亿美元，进口增加150亿美元。国内私人投资改变了多少?()

Write a letter to your best friend Du Yao asking her to attend a celebrating party for your brothers admission of the master program from Stanford University. You should write about 100 words on the ANSWER SHEET. Do not sign your own name at the end of the letter. Use 'Zhang Ying' instead. Do not write your address.(10 points) 点击查看答案

()的储备浮力往往在100%以上。

A.内河驳船
B.海船
C.军舰

点击查看答案&解析