判断题

确定初始运输方案时，可以用西北角法，也可以用西南角法、东南角法、东北角法。
正确
错误

答案：正确

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财政政策失效的原因包括（）

答案： A.时滞
B.利益集团的影响
C.预期的影响
D.战争或大选的影响
正确答案：时滞；利益集团的影响；预期的影响；战争或大选的影响

多项选择题

Which of the following statements about relationship between environmental protection and economic development is wrong _____?
A、Environmental protection is not an industry.
B、Environmental protection is an industry.
C、Both environmental protection and economic development can be realized at the same time.
D、Both environmental protection and economic development cannot be realized at the same time.