题目内容
[音频]
查看答案
搜索结果不匹配？点我反馈
更多问题
[音频]Scientific research should improve our overall quality of life. The government should provide financial and political support to any research that is likely to result in immediate and significant benefits for the people. However,people's ideas 1)____ when it comes to whether the government should support scientific research with no practical use. Still 2)____ people believe that the government should distribute adequate funds to any scientific research that aims to improve the 3) ____ of people, even if it is of no practical use in the short run.Scientific research whose social benefits are immediate,predictable and 4)____should continue to be a high priority. For example, biotechnology research has been proven to help cure and prevent diseases; information technology enables education to be more 5)____; and communication technology facilitates global peace by improving mutual understanding among people and their participation in the democratic process. However, this is not to say that research whose benefits are less immediate or clear should be given a lower priority. It is difficult to predict which research will 6)____ lead to the greatest contributions to society.Reluctance to finance less practical scientific research could 7)____ on the efforts to explore new knowledge. This is particularly true of the computer sciences. For instance,before the first computer was invented, public opinions 8) ____ it, as most people saw nothing practical in computer research. However, computers transformed the way human society,evolved and proved to be of great avail in the long run, especially in terms of scientific development in fields such as the military,medicine, 9)____, and education.Therefore,never should we think that scientific research whose benefits are unknown 10) ____ since the purpose of any research should be to discover truths,whatever it might be.
循环单链表的主要优点是（）。
若某线性表中最常用的操作是取第i个元素和找第i个元素的前驱，则采用（）存取方法最节省时间。
线性表的第一个元素叫做（）。
微信支付 
支付宝支付