Granted, Switzerland and the United States diverged in the degree to which the expansion of industry coincided with the degree of urbanization: only 29 percent of the Swiss population lived in cities of 10,000 or more inhabitants by 1920.
文中原句
注意only，暗示着美国城市化的百分比一定高于29%
P: most cancelled projects are regarded as wasteful
C: president isn't biased
取非: most of the wastefully project are controlled by president's party. 证明大部分wasteful的都是president的，但是among 这些wasteful projects大部分被取消的都是opposite party的 (biased)
high tax leads to decrease in population
A: tax revenue减少了，如果police protection and water line maintenance没有恶化，那么其他肯定要恶化（钱不够）
B: 文章说high tax ---> decrease in 人口;不代表stable tax---> 人口也不变
amout修饰不可数名词
ron:"twice as many", "one-quarter as many", etc. are not only acceptable as idiomatic expressions but also extremely common in the english language.
A，make cars more efficient now than before=make cars more efficient now than they were before，意思是使得同一批小汽车现在比过去更有效率。
C，make cars more that are more efficient now than those before
生产的是不同的小汽车，比较的是不同小汽车的车的一个性质--燃油效率的高低，生产比之前的小汽车更具燃油效率的小汽车。
改成make small cars more fuel-efficient now than those before也是可以的
This passage confused me a lot when i was writing the questions,
First para: the definition of femininity empowered women in the social activities.
2nd para: The female concept let women do the financial work but kept them away from politics.
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问budget-deficit如何削弱discrepancy( M productivity ↑, S ↓)budget deficit：低利率带来高投资→ S↑
e, 高利率对S和M的影响都是一样的 → 并不会造成discrepancy