题目内容
在湍流摩擦系数实验研究中,采用因次分析法的目的是__。在阻力平方区,摩擦系数入只与____有关。
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流体在圆管内的流动在阻力平方区,如仅使流速增加一倍,则流动阻力损失为原来的____倍。
局部阻力的计算方法有____和____。
Direction: Complete each unfinished sentence with a word, phrase, or structure from the box in the proper form.apply for, get to one’s feet, survive, attach (great) importance to, have much in common, being, judging by, competent, not so much...but the fact that, a crocodile of, ranging in price/age1.Usually the interviewer _________ the educational background, abilities, interests and past experiences of the applicant.2.Few people in that village ________ the terrible famine of 1962.3.His efforts to get the job were futile because there were a lot of ________ young men who _______ the job.4.Great minds think alike. Experienced teachers _________ when they talk about the teaching set-up.5.__________ the way she prepares the meal, we can say that she must have been trained in a good restaurant.6.The interviewee is not supposed to _________ before the interviewer does so.7.There are all kinds of suits for both men and women in the First Department Store, _________ from 350 to 1,500 yuan.8.Gone are the days when a mother made her way home followed by _________ children, _________ from two to ten.9. _________ completely incompetent for the job, he was discharged.10.He was dismayed. It was _________ having to teach the children at three levels, _________ he had to teach two subjects at which he had been incompetent at school
input的TYPE属性返回值range可以定义输入类型为（）
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