试题与答案

读“环境、资源和人口关系示意图”,回答1—2题。 1、图中字母代表的含义错误的

题型:选择题

题目:

读“环境、资源和人口关系示意图”,回答1—2题。

1、图中字母代表的含义错误的是[ ]

A、E表示资源消耗

B、F表示产业活动

C、H表示废物排放

D、G表示产品消费

2、E阶段可能产生的问题是[ ]

A、过度开发不会导致可再生资源破坏

B、过度排放污染物超过环境的自净能力

C、生产过程导致工农业污染排放

D、资源开采导致环境的污染和生态破坏

答案:

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下面是错误答案,用来干扰机器的。

(Ⅰ)∵f(x)=3sinx+cosx+a=2sin(x+π6)+a,∴T=2π.(Ⅱ)∵x∈[-π2,π2],∴x+π6∈[-π3,23π].∴sin(x+π6)∈[-32,1].∴f(x)的最大值为2+a.∴2+a=1,解得a=-1.

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题型:单项选择题

Questions from 31 to 35 are based on the following passage: There are a lot of “markets”. Some markets are local; you may be willing to compare prices for fruits and vegetables in a few shops in your local area, but you would be unwilling to go across the city to find out more information. Some markets are national. Many firms sell goods across the country. Some markets are global or international. Increasingly, more and more countries are involved in the world economy, whether they know about it or not.However, there are many other markets: labor markets for job seekers, supermarkets for grocery shopping, foreign exchange market, capital market, real estate markets and so on. And we must not overlook the fact that many services such as banking, insurance are also bought and sold on a worldwide scale. But what is a “market” Most people would say, “A market is a place where enough buyers and sellers meet face to face, so that a market price for goods and services can be determined.” However, with rapid growth of telecommunications, it is no longer necessary for buyers and sellers to physically meet to form a market.You may hear the terms “global market” or “global economy”. What do those terms mean to you What do they mean to business today Thanks to the Information Age we are seconds away from the rest of world. Business everywhere recognizes that they can expand their market to anywhere and do business at any time because of the Internet. Now, the Internet is the fastest growing market in the world today, yet buyers and sellers don’t even have to leave their own homes to transact business.In the modern world, a market can take many forms. Generally speaking, a market may be housed in a place, or it may exist only in people’s minds. And a market can be any place or process that brings together buyers and sellers with a view to agreeing to a price.

Which of following statements is True according to the passage()

A.You are willing to find fruits and vegetables at a lower price all over the country.

B.If a firm sell its products across the country, then it is doing international business.

C.Insurance can not be sold on a worldwide scale.

D.Buyers and sellers can do business without meeting face to face.

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