下列关于双链DNA分子的叙述，哪项是错误的（　　）

把上边的钟面划分成3块，每一块要有4个数．这4个数的和是26．请划在上图中．

The little boy____to the zoo every. week. (go)

一个空间几何体的三视图如图所示，且这个空间几何体的所有顶点都在同一个球面上，则这个球的体积是____．

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）.