What has been generally accepted as the reason for adolescence?
A．To allow humans to become sexually mature.
B．To give us an extended childhood during which to learn.
C．To allow us to grow to our relatively large size, compared with other primates.
D．So that parents will take more care of their children.

未分类题The first paragraph intends to______.A．paint a vivid picture of human society 1.5 million years agoB．outline the daily activities teenage humans took part in 1.5 million years agoC．show that teenagers have probably always been insubordinateD．console people who find it hard to communicate with teenagers

未分类题It can be learned from Paragraph 4 that______.A．private oil companies, non-OPEC countries and governments are powerlessB．OPEC needs to increase the refining capacityC．everyone should be more focused on geopoliticsD．OPEC can not be solely responsible for increasing refining capacity

未分类题What happens when a man says something flirtatious to a woman and she laughs?A．The man is being encouraged to continue flirting.B．The woman is discovering that the man is physically attractive.C．The man and woman are playing natural conversational roles.D．The woman is telling the man that she finds him, or his remarks, funny

未分类题Paragraph 2 suggests that______.A．we always laugh with other peopleB．laughter is a form. of communicationC．Robert Provine often laughs more frequently than the average personD．that it is hard to tell yourself a joke

未分类题According to the text, oil prices are kept high because______.A．only a little oil is being refinedB．refineries take a long time to buildC．people are driving too muchD．supplies of refined oil are limited

未分类题Which of the following statements is true according to the text?A．Peter Drucker is considered old-fashioned in today's business world.B．Sherron Watkins was more than likely fired shortly after her memo to Ken Lay.C．Sherron Watkins was brave enough to ask what appeared to be a stupid question.D．Peter Drucker was paid too much to question employees about their company.

未分类题From the first three paragraphs, we learn that______.A．it's more difficult for outsiders than insiders to ask dumb questionsB．dumb questions are usually asked by dumb peopleC．though dumb questions aren't easy to ask, they can be usefulD．most people don't need courage to ask dumb questions

未分类题According to the opening paragraph, data security is now high on bosses agendas becauseA．low-level IT staff cannot deal with it any moreB．bosses have dealt with all the other problems affecting their businessesC．data protection is a hot topicD．it is the kind of issue that can cause them to lose their jobs

未分类题Which of the following best describes the word 'sap'(line 3, para. 4)?

未分类题According to the author, the key of understanding economics is______.A．paradigmB．conformityC．methodological approachD．pragmatism

未分类题Which of the following can best summarize the main idea of this text?A．The beer in the best-shaped glass tastes best.B．What sort of glass can affect the speed of drinking.C．The shape and the contents of a glass matter.D．Angela Attwood offers us a research about glasses.

未分类题What can be inferred from Paragraph 4?A．The volunteers spent less time in drinking beer out of a jug.B．Whether a glass was full or half-full makes no difference to drinking speed.C．It took the volunteer five minutes to drink wine out of a straight glass.D．If a glass was full of lemonade, its shape matters.

未分类题According to the first two paragraphs, which of the following is true?A．Beer drinkers also care about the shape and angle when opening a boiled egg.B．People prefer to use a glass with a handle when drinking beer.C．It is hard for jug lovers and their fellow-drinkers to collect jugs.D．Straight glasses are popular in recent years.

未分类题Judging from the context, the word 'stack'(Para. 2)most probably means______.A．pileB．storeC．cleanD．preserve

未分类题How long did it take to drink a full flute of lemonade?A．Four minutes.B．Five minutes.C．Seven minutes.D．Eleven minutes.