主序星的能量烧完以后，就会变成？（）

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

Everyone had a childhood. And childhood experiences are often very funny. Children often make us    小题1:(laugh). It’s true    小题2:children brighten up a home. They never turn off the lights.

I often recall my childhood, the years   小题3:   many interesting things happened. When I was a two-year-old child, both my parents were always very busy with their work. My mother worked   小题4:   a sales manager in a company while my father served in    小题5:  army. So I lived with my grandma in a village. I was always waiting for my parents at home. Once my father    小题6:  (send) us a photo of his in a soldier’s uniform,    小题7:  was posted on the table reminding me of him.

Once my mother came to see me and we went   小题8:  (shop) together. On the way we saw a group of soldiers. And when I saw them, I became very    小题9: (excite). I said in a ringing voice pointing to    小题10:  , “This is my father, and this is my father, and that is my father, too!”

My mother said she would remember that moment all her life.

下图是一份地方报刊的号外，它说明当时的社会

A．注重科学，实事求是

B．忽视工业，片面发展

C．思想解放，决策民主

D．急于求成，“左”倾浮夸

油井化学法堵水方法很多，一般分为选择性堵水和非选择性堵水。

对现有竞争者和潜在竞争者的营销战略的优劣势进行的评价方法称为（）

A.竞争分析

B.需求

C.竞争环境分析

D.竞争战略分析

纠正措施是指（）所采取的措施。

A、返工返修

B、对不合格品

C、防止不合格可能发生

D、对不合格原因