【单选题】通过结合移动通信运营基站定位和GPS定位的A-GPS技术可以快速地定位,A-GPS又称作( )。
【单选题】听力原文:W: The Chinese stock market has opened to foreign investors. Are you going to buy Chinese stocks? M: Yes. I lost my shirt on Wall Street last year, so I think I will pull all my money out there a...
A.
Move to another residence from Wall Street.
B.
Transfer his investment to the Chinese stock market.
C.
Enter the stock market instead of investing in clothing.
D.
Share his money-making experience with other marketers.
【单选题】设 N 个待排序记录,初始状态已十分接近有序,用直接插入排序、直接选择排序和快速排序算法对其进行排序,这些算法的时间复杂度应为 ( ) 。
B.
O(N), O(N),O(N*log 2 N)
D.
O(N 2 ), O(N),O(N*log 2 N)
【简答题】构造函数的作用是什么?析构函数的作用是什么?
【单选题】某公司当期每股股利为3.30元,预计未来每年以3%的速度增长,假设投资者的必要收益率为8%,则该公司每股股票的价值为( )元。