American attitudes tend to be rather insular, but there is much we can learn from other countries. In Japan, for example, workers set aside some time each day to exercise, and many corporations provide elaborate exercise facilities for their employees. Few American corporations have such exercise programs. Studies have shown that the Japanese worker is more productive than the American worker. Thus it must be concluded that the productivity of American workers will lag behind their Japanese counterparts, until mandatory exercise programs are introduced.
The conclusion of the argument is valid if which one of the following is assumed?
(A) Even if exercise programs do not increase productivity, they will improve the American worker’s health.
(B) The productivity of all workers can be increased by exercise.
(C) Exercise is an essential factor in the Japanese worker’s superior productivity.
(D) American workers can adapt to the longer Japanese work week.
(E) American corporations don’t have the funds to build elaborate exercise facilities.
答案应该是哪个？作者: oddyuibe 时间: 2003-3-15 12:34
is B the answer?作者: liushiyou 时间: 2003-3-15 21:46
我选的是b，但给的答案是c。是不是和题目“The conclusion of the argument is valid if which one of the following is assumed? ”
中的valid有关啊？
只要使conclusion“valid”即可，而不是一定要使其“logically correct”？
liangqi能再具体解释一下吗？
谢谢！作者: StephanieYun 时间: 2003-3-15 23:09
谢谢大家！
1.我当时是考虑“c只是充分条件之一”,不一定使结论必然成立。但此题正确的思路应该是“只要是充分条件之一就ok”。我这么总结对吗？
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2.如果b改为：The productivity of workers IN THESE 2 COUNTRIES can be increased by exercise.可以选吗？
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3.“The conclusion of the argument is VALID if which one of the following is assumed? ”
和
“The conclusion of the argument is CORRECT if which one of the following is assumed?”
2种问法有区别吗？
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请指正！
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