领导
参考答案：领导是指拥有组织所赋予职位和权力的个人，通过指引和影响下级完成组织目标的一种管理过程。
It's cruel ________ him to kill ______ many children with a knife. [ ]
A. of, such
B. for, such
C. of, so
D. for, so
用随机区组设计方差分析的方法比较三组样本均数，若分为5个区组，当检验水平是0.05时，需比较不同处理时的 F界值是
A．F(2,8),0.05
B．F(2,4),0.05
C．F(4,8),0.05
D．F(2,14),0.05
E．F(2,15),0.05
