描述某一评价参数的指数,例如飘尘指数
A.单一指数(分指数)B.单要素指数(综合指数)C.总环境质量指数D.最高分指数E.最低分指数 以下各种指数分别称为
参考答案:A
在文件夹下VEW文件夹中建立一个新文件夹DCD。
As one of the tools and techniques of activity sequencing, a lead ().
A.directs a delay in the successor activity
B.could be accomplished by a finish to-start relationship with a delay time
C.means the successor activity cannot start until after the predecessor is completed
D.allows an acceleration of the successor activity