颠换
参考答案:
一个嘧啶被一个嘌呤所替换,或反之。
But for the help of my English teacher, I __________the first prize in the English Writing
Competition. [ ]
A. would not win
B. would not have won
C. would win
D. would have won
在职能、产品、地域、流程或客户的基础上。将工作分类是()的一种形式。
A.部门化
B.工作专门化
C.控制跨度
D.命令链