2. 某个国家用gas tax修路,第一年的tax revenue is enough for the repairing work in year 1, so the gov claims that since the gas price keeps rising, the tax revenue for this year is more than enough for the repairing working this year. The statement of the gov is based on which of the following assumption? 选择B: the current gas price will not deter the usage of it which will finally prevent it from rising.
6. 这题印象很深,第40题: An artist, unlike Jackie Tomthan, John is not the Kevin Hopkinson to the united states as much as their Kigburg Wills, the …. A. As much as their B. So much as their C. Rather than its D. Instead its E. Instead of its
10. X^2+KX+50=0,K is integer, what is the least value of K in order that the image has two different intersections with X-axis? 选择:there is no least possible value.运用判别式得出K^2-400>0,K可以取负无穷大。
LZ,k是可以无穷大,但又符合least value,且符合integer的答案不是21? 你为什么选there is no least possible value?