某种群在一个有限的环境中所能稳定达到的最大数量，称为该系统或环境对该种群的______，常用K表示。
参考答案：容纳量
In China when caught, those corrupt(腐败的) officials are sometimes limited to __________ in a certain place, only __________ their problems within an appointed time(规定的时间).
A．living, to report
B．living, reporting
C．live, reporting
D．live, to report
关于x的方程x2 – mx – 2 =" 0" ( m为实数)的根的情况是
A．有两个不相等的实数根
B．有两个相等的实数根
C．没有实数根
D．有没有实数根不能确定
