英语语法分析

The quality or practice of being advertent; heedfulness.

注意，留心：注意的特性或行为；留心。

Is the need when is consumer bought advertent what problem?

消费者购买时需要留意哪些问题？

Combining one practice of research study lesson, the author puts forward to some advertent problems to develop research study.

结合一次研究性学习课的实践，提出了开展研究性学习应注意的几个问题。