将产品需求的变化与相应的资源需求变化相匹配。 1: 19世纪澳大利亚淘金热期间，对黄金的需求日益增长。 ____ 2: 近期，诸如“戒糖”之类的广告宣传活动和节目引发的公众关注，导致人们对垃圾食品和碳酸软饮料的需求下降。 ____ 3: 假设学生对莫纳什大学预科课程的需求增加。 ____ 4: 近几十年来，中国经济发展迅速，对新建建筑物和桥梁的需求量很大。 ____匹配题
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Imagine the government introduces a new subsidy for measles vaccinations. The government will pay consumers of the vaccination 50% of the vaccination price. Which effect is most likely in the market for vaccinations?
Imagine the government introduces a new subsidy for measles vaccinations. The government will pay consumers of the vaccination 50% of the vaccination price. Which effect is most likely in the market for vaccinations?
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