题目内容

产品市场生命周期理论促使企业必须具有创新精神。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

________ (有，存在)a house in the picture.

________(有，存在)some clothes in the shop.

There isn't a clock ___(在...上面) the wall.

There are ______ (三把椅子)in the room.