“坚持‘百花齐放，百家争鸣’的方针，是社会主义初级阶段的基本国情……提出的客观要求。”这里“客观要求”指的是（   ）

根据短文内容，选择方框内的单词, 并用其适当的形式填入空白处，使短文意思连贯通顺，语法正确。

Duties of a Student

    Education is the very thing that we want to receive. Our parents ____ us to school so as to enable (使能够) us to get knowledge and achieve great things in the future. The followings are the duties of a student which we should keep in ____.

    Firstly, we should be filial (孝顺的) to our parents and respectful to our ____.

    Secondly, we must study as ____ as we can.

    Thirdly, we must not tell lies.

    Last of all, we must not criticize (苛求) ____.

    To sum up, the above-mentioned rules are the very duties of a student.

下列对青少年吸烟认识不正确的是（    ）