城市公园有一个半径10米的大喷泉,沿着喷泉的周边每隔4米安装一个喷水管,共要安装多少个喷水管?

1 Last Sunday afternoon,someone drowned beside City Park,we pulled him out and saved him.
2 We helped him to implement first aid and called an ambulance.
3 He has no danger when he was sent into the hospital.
4 His parents expressed specil thanks to us and the doctor said we did a good first aid.
5 I am very happy to help others and receive praise.
楼上的那位是机译,希望能帮到你!

at the City Park

should have a name such as "Qingdao Park"
"Rose Park" "Central Park"
Do not just use city park as the name.
I donot like either public park or city park.

I will help to clean the city's park.
外语团队为您解答 望采纳

my parents are both busy working and my mind is always occupied by the study. therefore, during the weekdays, none of us will do the cleaning job. but at the weekend, always on sunday, our family together do the housework. it is not a easy to assign the jobs but we cooperate well. my mother is responsible for cleaning the floor while my father is in charge of cleaning the windows. i am usually appointed to tidy my own bedroom. even though it is a tough job, i find it interesting.
i feel so pround after i finish cleaning. cleaning is definitly helpful to improve my family relationship and make us in a happy mood before new week coming.

解题思路：根据圆的周长公式C=πd，求出大喷泉的周长，再除以3即可．

3.14×20÷3≈21（个）
答：共要安装21个喷水管．

点评：
本题考点： 有关圆的应用题．

考点点评： 本题主要是利用圆的周长公式解决问题．

城市公园生态环境系统是一个人工化的环境系统.影响公园生态环境的主要因素有植被、土壤、地形、水体和人为活动等.公园中的地形改造结合挖湖堆山来进行,创造了自然起伏的地形和圆滑多变的水体轮廓,为园林植物提供丰富多样的生态环境.公园中各类园林植物群落是设计者依据各种园林植物的生态习性及人们的审美需要配置形成的,园林植物有造景、净化空气、防风固沙等调节城市局部生态环境平衡作用.

We often play together after school.
2 I'm going to visit city park.
3 how you go to school?
4 the blue bird is singing loudly.
5 what do you usually do?
6 doctor salving patients.
7 the police to our city became a place of safety.
Do you want to) to become an astronaut?
9 he lived in the rose garden district of wenzhou tower 2 1803.
This building is ⑩ 10 layers,he lived in the attic.
11 and campus has a garden,a swimming pool and a few court.
12,who lived in the tallest building?
13,(the way) in a traffic jam
14 and the many cars,buses,and trolley in serious traffic jams advance slowly.
15 and the girl is running through the zebra crossing.
16 and shelf some potatoes and squid.
17,Kitty went to the supermarket which department?
18 and he spent 30 yuan to buy a book.
19 and I like most is mom's pancake.
20,you usually eat lunch?
21 and your drink anything dinner yesterday?
22,you had chocolaote sundae
23 and good recipe is every day is with some meat and rice,vegetables and fruit.
24,his recipes there are not enough vegetables.
25 and overmuch candy is harmful to our health.
26,these meters from?

30*3.14/5=18.84 取整19 实际间距4.957米

解题思路：根据圆的周长公式C=πd，求出大喷泉的周长，再除以3即可．

3.14×20÷3≈21（个）
答：共要安装21个喷水管．

点评：
本题考点： 有关圆的应用题．

考点点评： 本题主要是利用圆的周长公式解决问题．

We went to park yesterday.Well,there were many flowers in the park,such as roses,osmanthuses and so on.The air was filled with the smell of flowers.We all like it.In the morning,we took some photos with the animals and played all kinds of games.At noon,we had a big meal on the grass.It was very delicious,of course.In the afternoon,we visited the history museum and also wrote a report about the trip.In a word,I think this trip is very meaningful and unforgettable.

解题思路：根据圆的周长公式C=πd，求出大喷泉的周长，再除以3即可．

3.14×20÷3≈21（个）
答：共要安装21个喷水管．

点评：
本题考点： 有关圆的应用题．

考点点评： 本题主要是利用圆的周长公式解决问题．