题目内容
For every course that he follows a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a constant pressure and strain of work, but in spite of this some students stir find time for great activity in student affairs. Elections to position in student organizations arouse much enthusiasm. The effective work of main mining discipline is usually performed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating has to appear before a student court. With the enormous number of students, the operation of the system does involve a certain amount of activities. A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career.
Normally a student would at least attend ______ classes each week.
查看答案
搜索结果不匹配？点我反馈
更多问题
This passage tells us that______.
What's more, the great part of the growth—9 of every 10—added to the earth's population—will be in the poor and undeveloped countries. These are the nations where providing enough food for billions of people already is proving to be a headaching problem.
By the year 2000, today's "have not" nations will have a total population of 5 billion people, nearly four-fifths of the world's population.
Food isn't the only problem that such a population explosion presents. The more people there are and the worse their living conditions, the greater grow the possibility of all kinds of social problems.
In 1830, world population reached 1 billion. It took only 100 more years to add another billion to world population, just 30 more to add a third billion. And it took just 15 more years to reach the 4 billion mark in 1975.
Actually, the world's birth rate is falling. But so is death rate, as medical advances have made it possible for man to live longer than before. Such advances have also reduced baby death rate. Unless population growth is reduced, the world population may reach 12 billion in a century. Is the earth capable of providing a good life for so large a population？
A population explosion will lead to______.
According to Paragraph 2, research surveys have proved that______.
______, the world may have a population of 12 billion in a century.
微信支付 
支付宝支付