题目内容

According to the article,what causes a star to die？

As its gases run out, it cools down.
B. It collides with other stars.
C. It can only live for about a million years.
D. As it gets honer and hotter, it explodes.

查看答案

搜索结果不匹配？点我反馈

更多问题

动作技能的教学一般宜采用示范法。（）

A. 正确
B. 错误

一个6岁的孩子偶然地碰到了电线，被电伤，但他也因此获得电的有关知识，这种过程是一种“教育”。（）

A. 正确
B. 错误

For years the girl had harbored her_____against her stepmother. Today,she finally got the

A. resentment
B. rivalry
C. compulsion
D. concession

【B7】

A. atmosphere
B. conditions
C. circumstance
D. environment