问题
多项选择题
下列关于坝段分缝分块形式中的斜缝分块叙述中正确的有( )。
A.缝是向上游或下游倾斜的
B.缝是向下游倾斜的
C.斜缝可以不进行接缝灌浆
D.斜缝必须进行接缝灌浆,否则库水渗入缝内
E.斜缝不能直通到坝的上游面,以避免库水渗入缝内
答案
参考答案:A,C,D
下列关于坝段分缝分块形式中的斜缝分块叙述中正确的有( )。
A.缝是向上游或下游倾斜的
B.缝是向下游倾斜的
C.斜缝可以不进行接缝灌浆
D.斜缝必须进行接缝灌浆,否则库水渗入缝内
E.斜缝不能直通到坝的上游面,以避免库水渗入缝内
参考答案:A,C,D
完形填空。 | ||||
Not all heavy children have weight problems like adults. However, as children get older, their chance for staying fat l . The chance is even 2 if one or both parents are also overweight. It's important to work on weight problems early. Why is the healthy weight important? If you are too heavy and fat, you have a better chance of developing a serious 3 such as heart disease. Maybe you also suffer from other problems. For example, you often feel tired, and you can't 4 well. The best 5 to lose weight is to eat healthier food and to exercise often. Be patient. It may 6 a long time. Don't stop yourself from eating, but eat healthier food. Get your whole family to eat 7 , and it will be good for everyone. When you go to a supermarket, try to buy food 8 is low in fat. Do exercise! The Internet, computer games, and TV keep kids from 9 like dancing, running and so on. The whole family can go for a walk or a bike ride. It is good for their health and, 10 ,they can have a good time together. | ||||
|