问题
选择题
| Young people go to college with the expectation that _____ educated people get a higher pay. |
A. good B. better C. best D. the best |
答案
答案：B
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| Young people go to college with the expectation that _____ educated people get a higher pay. |
A. good B. better C. best D. the best |
答案：B
，当电动机正常工作时，求：