How many girls are there in your class？
A. Yes, there are a lot of girls.
B. No, they aren't.
C. About 30 girls.
D. About 30 boys.
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Classical economists argued that ______.
A. aggregate demand is inherently unstable in a capitalist economy
B. the aggregate supply curve is horizontal to the full-employment level of output in the economy
C. a laissez-faire policy of government is best in a capitalist economy
D. the unemployment rate is inversely related to the price level in the economy
某处长对下属做思想政治工作。引用孟子的话说：“鱼，我所欲也；熊掌，亦我所欲也，二者不可兼得，舍鱼而取熊掌也。”这是在教育下属（）。
项目监理机构的组成符合()的原则。
A. 公平、公正、公开
B. 公正、独立、自主
C. 专业、独立、精简
D. 适应、精简、高效
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