(单选题)30: 在完全的NI—AE模型中，税率为0.25，边际消费倾向为0.8，边际投资倾向为0.3，边际进口倾向为0.2，要使均衡水平的国民收入增加2亿元，投资要增加（ ）
A: 0.5亿元
B: 1亿元
C: 2亿元
D: 4亿元
1.(单选题)—Hello,YangLinspeaking. —________________ A.I am Carol. B.This is Ca...
1.(单选题)—Goodmorning,canIhelpyou —________________ A.No, I just have a look ...
1.(单选题)—Hello,YangLinspeaking. —________________ A.I am Carol. B.This is Ca...
1.(单选题)— —It'smypleasure． A.Can you fax the document in time B.When can yo...
1.(单选题)— —Theround-tripairfareforapersonisonly$188. A.How much does the air...
要做作业扫码我