问题
填空题
水闸的孔口尺寸决定于()及其相应的()。
答案
参考答案:过闸流量;上下游水位差
水闸的孔口尺寸决定于()及其相应的()。
参考答案:过闸流量;上下游水位差
综合填空(每小题1分,共10分) 用方框中所给词的适当形式填空,使短文正确、能顺。每词限用一次。
Other young volunteers go and work in the homes of people who are sick or old . They paint , clean up or repair their houses , 小题4: them with food or mow ( 割,修剪 ) their lawns . For boys who no longer have fathers, there is an organization 小题5: Big Brothers. College students and other men take these boys to baseball games or on fishing trips so 小题6: they help boys know what a father can do . 小题7: city has a number of clubs . They are good places for boys and girls 小题8: . Some of these clubs show films or organize short trips to the mountains or other 小题9: of interest. Most of these clubs use a lot of high school and college students as 小题10:because they are young enough to remember the problems and needs of young boys and girls. |