题目:
滤池按水流方向分为?
答案:
参考答案:
1.降流式滤池
2.升流式样滤池
3.升降流结合滤池
4.水平流式滤池
滤池按水流方向分为?
参考答案:
1.降流式滤池
2.升流式样滤池
3.升降流结合滤池
4.水平流式滤池
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I stopped at a grocery store the other day because I was about to go on a long drive and I wanted to buy my favorite for the trip. It wasn’t the store I go to, just one I passed along the way. As I walked up to the entrance, I a man and a boy who was about 10 or 12 years old at the front of the store. The man handed half-sheets of white paper as customers walked past. I walked up to them with , wondering what cause they . As I got closer, I saw that they had two carts (购物车) starting to fill with . I said hello and the man greeted me and me one of the pieces of paper, that they were collecting donations for the homeless. On the paper was a simple of food items: peanut butter, noodles, pasta sauce, canned fruits and vegetables. It also included a short story about the boy and his to collect food donations since the age of 8. I was really that someone so young would be so interested in helping others. I told him it was a(n) idea and that he should be proud of himself. He smiled. Then, I went inside to get my drink. , the store didn’t have it. , I wasn’t upset, because by then I felt I had another mission. I went through the store, things from the list, then brought them back out to the boy and put them in the cart. They thanked me and offered me a(n) (candy, I think). As I walked back to my car, the boy’s well-intentioned spirit with me. How inspiring to a young boy with a resolve to do good deeds, and the courage to act on it.
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牙周病的基础治疗是指()
A.正确刷牙和洁治术
B.洁治术和刮治术
C.刮治术和根面平整
D.服用消炎药和使用含漱液
E.口腔卫生宣传和定期的洁治术
下列电工常用仪表名称中()是按其测量对象分类的。
A.电磁式
B.电压表
C.交流表
D.携带式
依据格鲁尼格的观点,通过单向的新闻宣传来制造轰动效应来吸引公众的注意指的是()。
A.新闻代理模式
B.公共信息模式
C.双向不平衡模式
D.双向平衡模式