According to the article, what is 'social promotion'?
A．Promoting students to a higher social class despite failing grades.
B．Allowing students to move on to the next grade despite failing grades.
C．Giving students failing grades.
D．Attending summer school.

判断题行业自律是一种有效的制度安排，其能够发挥作用有赖于政府的强制实施。()

未分类题We can learn from the text that New York City schools______.A．have been having problemsB．are among the best in the worldC．require all students to attend summer schoolD．are promising in their potential

未分类题According to the article, which is one of the reasons why legislators have not made summer school compulsory?A．Students don't like summer school.B．Instituting such a program would be very expensive.C．Students who need help the most don't even attend.D．The program has had mixed results.

未分类题开展集体教学活动需要做哪些准备()

判断题中央银行的主要业务活动没有银行固有办理'存、贷、汇'业务的特征。()

未分类题建构主义的知识观()

未分类题Which of the following is true according to the text?A．Macroeconomics has undertaken evolutionary change.B．Markets may fail due to irrational exuberance.C．Mr. Akerlof won the Nobel Prize for behavioral economics.D．Economic crises occur with different manifestion.

判断题资产组合的方差由各资产的权重和方差决定，与各资产之间的协方差无关。()

未分类题By mentioning the encouragement of peoples saving, the author intends to______.A．emphasize the importance for people to be farsightedB．demonstrate the behavioral economics' influence on policy makingC．explain how behavioral economists earned the Nobel PrizeD．manifest that evolution has taking place in microeconomics

未分类题The underlined word in Paragraph 1 means______.A．lostB．prosperousC．fadingD．professional

未分类题According to the passage, a standard economic experience is that______.A．deficit finance is of value in economic crisisB．the stock market is in an irrational exuberanceC．markets may fail under some circumstancesD．humans are rational calculators

未分类题What do we learn from the text?A．Information technology is important for the transportation industry.B．The transportation industry has completed the task of using information technology to improve critical systems.C．Many people fail to realize the importance of the transportation industry.D．Many people fail to realize the importance of information technology.

未分类题The example of Britain indicates that______.A．a large proportion of waste is generated by developed countriesB．there are many other kinds of rubbish besides municipal wasteC．mining extraction generates large quantity of wasteD．agricultural waste makes up a large proportion of the total

未分类题The second paragraph mainly demonstrates______.A．space garbage's hazard towards peopleB．that people produce waste of all kinds with large amountC．whether people should take recycling into accountD．Ken Noguchi's five clean-up expeditions

未分类题When does Miralda-Escude estimate the first star appeared?A．75 million years ago.B．14 billion years ago.C．14 billion years after the big bang.D．75 million years after the big bang.