P235 E11-66: Since the 1903’s aircraft manufactures have tried to build airplanes with frictionless (wings, shaped so smoothly and perfectly) that the air passing over them would not become turbulent.
再下一题：E11-67.while some academicians believe that business ethics should be integrated into every course, others say that students will take ethics seriously (only if it would be taught as a separately required course.)
LZM排除CDE的解释，也是没说到点子上。看过LSAT逻辑的人应该知道，only if 和 if 是不同的条件。一个比要，一个充分，增么能替换呢？
再来一句：p211,11-31,According to some analysts, whatever (its merit, the proposal to tax) away all capital gains on the short-term investment would be, if enacted, have a disastrous effect on Wall Street.
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2006-9-29
