随着居民生活水平的提高，家庭轿车越来越多，行车安全就越发显得重要。在行车过程中规定必须要使用安全带。假设某次急刹车时，由于安全带的作用，使质量为70kg的乘员具有的加速度大小约为6m/s²，此时安全带对乘员的作用力最接近

“男生女生向前冲”是安徽电视台推出的一档全民健康榜样节目，深受全国各地观众的喜爱．请你结合所学知识，回答问题：

根据句意和汉语注释，在答题卡标有题号的横线上，写出单词的正确形式。
(1)The first step towards forming ____ (习惯) is that you can plan everything well.
(2)My parents always ____ (比较) me with my sisters before. That made me feel unhappy.
(3)Wine and other goods____ (进口) from France are popular in China.
(4)Look! There are two coats hanging over there. The blue one is the____ (干的) of the two.
根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。
(5)Look at ____ (you) in the mirror. How dirty your faces are!
(6)Grandpa told me that he joined the Party in his early____ (twenty).
(7)Here comes the most exciting moment! One of the ____ （spaceman）is out of the spacecraft.
(8)If you want a strong body, you must eat and drink ____ （health）.

Aⁿ⁺、B^（n+1）+、C^n—、D^（n+1）—都是具有相同电子层结构的离子，下列说法不正确的是（   ）

把吹胀的气球压在一根大头针上，稍一用力气球就被刺破。而用同样大小的力把它压在大量的大头针上，气球却安然无恙(如图所示)，这是因为    (    )