领导环境的类型按领导者对环境可控程度分，可划分为：可控环境、部分可控环境、不可控环境。

绿色食品产品包装标签可以标示产品执行的（）。

A、国家标准
B、绿色食品标准
C、企业标准
D、地方标准

点击查看答案&解析

The author began to feel guilty when（）.

A.she was late for the parents’meeting
B.the master talked about the problem
C.she thought of the helping parents
D.her first day as leader ended terribly

点击查看答案&解析