6. At 70, I could follow the dictates of my own heart; for what I desired no longer overstepped the boundaries of right
查看答案
Reptiles include frogs, snakes, lizards, alligators(短吻鳄), and crocodiles.
Kruskal算法是求加权连通图最小生成树的精确算法。
MATLAB工具箱中进行逐步回归分析的命令为() 提示: A stepwise; B regress; C normfit; D sort