当消费者的收入增加后，需求曲线的移动是向( )A．左上方垂直_爱下问搜题

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问题单项选择题

当消费者的收入增加后，需求曲线的移动是向( )

A．左上方垂直移动

B．左下方水平移动

C．右上方水平移动

D．右下方垂直移动

答案

参考答案：C

填空题

从下列方框中选适当的词填空，注意其形式变化。

journal final schedule altitude rely assurance insist attitude

1. The plane is flying at an ____ of 10,000 feet now.
2. He ____ that he hadn't stolen the girl's handbag.
3. Everyone should take a positive ____ towards life.
4. He insisted on doing it all by himself and ____ I had to give in.
5. He kept a ____ of what he did while wandering across Asia.
6. How can he fit everything into his busy ____?
7. After graduation, Tom is going to work in an ____ company.
8. He is very ____ and I always turn to him for advice.

填空题

中性原子X中，Z等于原子核内的____________、____________、____________、____________，A=Z+N。