【多选题】特许权的组成要素有( )。A.商标 B.管理和技术诀窍、 C.商品/服务的经销权 D.单店运营管理系统
【简答题】请简要说明非洲面临的人口、粮食、环境问题?
【单选题】在Word 2007中,切换“插入”和“改写”编辑状态,可以按( )。
【单选题】In midocean,the characteristics of a wave are determined by three factors.What is NOT one of these factors?
A.
Effect of the moon’s gravity
D.
Length of time a wind has been blowing