早教吧作业答案频道 -->英语-->
任务型阅读Pollutionproblemsarebecomingmoreandmoreserious.Oneofthemiscalled“whitepollutions”causedbyplastic,suchasshoppingbags,boxesandcups.InChina,aboutthreebillionplasticshoppingbagsareusedeveryday,
题目详情
任务型阅读 Pollution problems are becoming more and more serious. One of them is called “white pollutions” caused by plastic, such as shopping bags, boxes and cups. In China, about three billion plastic shopping bags are used every day, which results in a great waste of resources(资源) and heavy environment pollution. Luckily, the government has stopped us from using free plastic bags, telling all stores and supermarket not to provide customers(顾客) with free plastic bags since June 1,2008. From then on, people have been supposed to use cloth bags and shopping baskets instead of plastic bags in order to protect our environment. Now, more and more people have realized the importance of using the cloth bags and shopping baskets. For one thing it can protect our environment, for another it can also save energy. Yet we have more things to do to solve the problem of “white pollution”! 小题1:Is “white pollution” caused by plastic? __________________________________________ 小题2:How many plastic shopping bags are used every day in China? _____________________________________________ 小题3:What are the advantages of using cloth bags or shopping baskets? ———————————————————————— |
▼优质解答
答案和解析
小题1:Yes, it is. 小题2:About 3 (three) billion. /About 3 (three) billion plastic bags are used every day in china. 小题3:It can not only protect our environment but also save energy./ For one thing, it can protect our environment. For another, it can also save energy. |
|
看了 任务型阅读Pollution...的网友还看了以下:
数学期望公式:当X~H(n,M,N)时,E(X)=nM/N.当X~B(n,P)时,E(X)=nP. 2020-05-14 …
设随机变量X~b(n,p),且E(X+1)=6,D(X+1)=4,则n = ( ). 2020-05-17 …
一道数学题小题2若£~B(n,P),且E£=6,D£=3,则P(£=1)的值?答案是3*2^(-1 2020-05-23 …
一道数学题小题若£~B(n,P),且E£=6,D£=3,则P(£=1)的值?答案是3*2^(-10 2020-05-23 …
设X~B(n,p),且E(X)=2,D(X)=1,则P{X>1}=? 2020-06-16 …
设X~B(n,p),且E(X)=6,D(X)=3.6,则n=,p=. 2020-06-18 …
设随机变量X~B(n,p),且E(X)=2.4,D(X)=1.1.68,则n,p=? 2020-07-17 …
1.已知随机变量服从二项分布B(n,p),且E(X)=2.4,D(X)=1.44,则n,p的值为多 2020-08-03 …
设XB(n,p),且E(X)=15,D(X)=45/4,则n,p的值分别为A.50,1/4B.60, 2020-11-02 …
化学平衡中的气、液、固三系是否分开讨论…?比如,mA(g)+nB(l)=pC(g)+qD(l)+rE 2020-11-03 …