Problem: Write a multi-choice question for the following article: Article: However wealthy we may be, we can never find enough hours in the day to do everything we want. Economics deals with this problem through the concept of opportunity cost, which simply refers to whether someone's time or money could be better spent on something else. Every hour of our time has a value. For every hour we work at one job we could quite easily be doing another, or be sleeping or watching a film. Each of these options has a different opportunity cost--namely, what they cost us in missed opportunities. Say you intend to watch a football match but the tickets are expensive and it will take you a couple of hours to get to and from the stadium. Why not, you might reason, watch the game from home and use the _ money and _ to have dinner with friends? This--the alternative use of your cash and time--is the opportunity cost. For economists, every decision is made by knowledge of what one must forgo--in terms of money and enjoyment--in order to take it up. By knowing precisely what you are receiving and what you are missing out on, you ought to be able to make better-informed, more reasonable decisions. Consider that most famous economic rule of all: there's no such thing as a free lunch. Even if someone offers to take you out to lunch for free, the time you will spend in the restaurant still costs you something in terms of forgone opportunities. Some people find the idea of opportunity cost extremely discouraging: imagine spending your entire life calculating whether your time would be better spent elsewhere doing something more profitable or enjoyable. Yet, in a sense it's human nature to do precisely that--we assess the advantages and disadvantages of decisions all the time. In the business world, a popular phrase is "value for money." People want their cash to go as far as possible. However, another is fast obtaining an advantage: "value for time." The biggest restriction on our resources is the number of hours we can devote to something, so we look to maximize the return we get on our investment of...

A: Question: According to the passage, the concept of "opportunity cost" is applied to _ .Options:A making more moneyB taking more opportunitiesC reducing missed opportunitiesD weighing the choice of opportunitiesAnswer:D

Problem: Given the question: Write a multi-choice question for the following article: Article: A man may usually be known by the books he reads as well as by the company he keeps. One should always live in the best company, whether it be of books or of men. A good book may be among the best of friends. It is the most patient and cheerful of companions. It always receives us with the same kindness; amusing and instructing us in youth, and comforting us in age. Men often discover their similarity to each other by the common love they have for a book just as two persons sometimes discover a friend by the admiration which both entertain for a third. There is an old proverb, "Love me, love my dog." But there is more wisdom in this: "Love my, love my book." The book is a truer and higher bond of union. Men can think, feel, and sympathize with each other through their favorite author. _ A good book is often the best container of a life preserving the best that life could think out; for the world of a man's life is, for the most part, but the world of his thoughts. Thus the best books are treasuries of good words, the golden thoughts, which become our steady companions and comforters. Books are by far the most lasting products of human effort. Temples and statues decay , but good books survive. Time is of no account with great thoughts, which are as fresh today as when they first passed through their author's minds, ages ago. The great and good do not die, even in this world. Preserved in books, their spirits walked abroad. The book is a living voice. It is an intellect to which one still listens.
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Question: which of the following is TRUE according to the passage?Options:A We can learn about the great and good through books.B The most important part of a man's life is his treasures.C Good books help us to know about their authors' friends.D Books are often regarded as best containers in our life.Answer:A

input question: Write a multi-choice question for the following article: Article: The oldest and most common source of renewaBle energy known to man, Biomass is one of the most important forms energy production in the United States and elsewhere. Since such a wide variety of Biomass materials is everywhere ---- from trees and grasses to agricultural and city ---- life wastes ----Biomass promises to play a continuing role in providing power and heat for millions of people around the world. According to the Union of Concerned Scientists(UCS), Biomass is a kind of renewaBle energy source that produces no carBon dioxide , Because the energy it contains comes from the sun. When plant matter is Burned, it gives off the sun's energy. In this way, Biomass serves as a sort of natural Battery for storing the sun's energy. As long as Biomass is produced continuously ----with only as much grown as is used--- the "Battery" lasts forever. According to the Energy Information Administration, Biomass has Been one of the leading renewaBle energy sources in the United States for several years running through 2007, making up Between 0.5 and 0.9 percent of the nation's total electricity supply. In 2008----although the numBers aren't all in yet----wind power proBaBly took over first place Because of the rapid development of wind farms across the country. Producing power from Biomass helps reduce some 11 million tons of carBon dioxide each year. Some homeowners also try to make their own heat By using Biomass materials. Such practice may save homeowner's money, But it also produces a lot of pollution. So, the Best way is to encourage power plants to use it.???
output answer: Question: Why is Biomass considered as " a sort of natural Battery"?Options:A It Burns merely plant matter.B It keeps producing electricity.C It stores the energy from the sun.D It produces zero carBon dioxide.Answer:C

[Q]: Write a multi-choice question for the following article: Article: On warm summer days with little or no wind, the air temperature in cities can be up to ten degrees higher than that of the surrounding countryside. This is a phenomenon commonly referred to as the "urban heat island" effect. This phenomenon happens when pavement, buildings, and other infrastructure replace natural land cover. _ Unlike soil, paved areas contribute to runoff, which means that as paved areas increase, the amount of water available for evaporation decreases. Moreover, urban areas have fewer trees and less natural vegetation which help to control the heat by providing shade and blocking solar radiation. The surfaces of leaves also provide water for evaporation which cools the air, further worsening the heat island effect. In particular, during summer, more energy is required to cool the insides of building and for refrigeration, thereby creating additional heat output. This in turn leads to higher ambient air temperatures, which can also significantly increase the formation of urban smog in an area, _ local air quality. Such a situation may directly affect public health with individuals more likely to suffer from heat exhaustion and the effects of asthma .
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Question: The passage is mainly developed by _ .Options:A giving typical examplesB following the time orderC presenting the effect and analyzing the causeD analyzing a problem and seeking the solutionAnswer:C