Why wasn't Mrs. Johnson upset with Jan for drawing a picture instead of coloring？
A. She thought Jan's drawing was acceptable.
B. She felt her duty was to encourage pupils.
C. She liked his drawing very much.
D. She found Jon was good at drawing.
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When did farmers first begin using scarecrows in their fields？
A. Last year.
B. 10 years ago.
C. 2000 years ago.
D. Every fall.
“上游”生产过程的部分产出都被用作“下游”生产过程的一种中间投入，则可以认为上下游生产过程是一体化的。()
A. 正确
B. 错误
下列说法中对新产业组织理论认识正确的一项()
A. 在研究方法上强调市场结构
B. 在研究方法上突出市场行为
C. 将市场结构看作外生变量
D. 新产业组织理论的代表人物有施蒂格勒、德姆塞茨等
我国改革开放后产业布局政策主要是()
A. 均衡的
B. 反梯度的
C. 非均衡的
D. 以上都不正确
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