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问答题
正是通过适当的运动她的健康才得到较大的改善。
答案：
正确答案：It’ s by taking moderate exercise that she’ s improving...
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问答题
Cooking will usually kill bacteria if the temperature is high enough and the high temperature lasts long enough.
答案：
正确答案：如果温度足够高，并且持续的时间足够长的话，烹饪通常会杀死细菌。
问答题
To understand the marketing concept, it is only necessary to understand the difference between marketing and selling.
答案：
正确答案：要想了解营销的观念，只需要理解市场营销和销售之间的区别即可。
问答题
Successful merchants and producers, however, recognize that the surest route to profit is through understanding and catering to customers.
答案：
正确答案：然而，成功的商人和生产商认识到，获利的最可靠的途径就是理解并迎合消费者的需要。
问答题
Bent stripes, called chevrons(人字形), painted on the roads make drivers think that they are faster than they really are, and thus drivers slow down.
答案：
正确答案：喷刷在马路上的弯曲的人字形条纹，使司机们觉得他们驾驶的速度比实际的速度要快，因此司机会减速行驶。
问答题
However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
答案：
正确答案：然而，当司机看惯这些喷刷的条纹时，车速往往会在几个月内返回到全速的状态。
问答题
刚开始你可能会认为每天早晨散步非常单调，但逐渐就会体会到它的益处。
答案：
正确答案：At first, you may think it’ s dull to take a walk every...
