Kiyoto Saito is trying to change people's opinion of agricultural work through his unusual attire (打扮). Whether he's driving a tractor ____ is standing in the fields, Kiyoto is always wearing an elegant suit.

    Kiyoto's family has been planting rice for around 400 years, but as a teenager he ____ (find) the tradition boring and moved to the city. He returned to his native town two years ago____ (determine) to get involved in the family business.

    ____ idea of wearing a suit in the fields started as a joke. One day, his brother joked about farming in an elegant suit, but Kyioto took it____ (serious). He viewed the idea as the perfect way to change public opinion of agricultural work. “Most people think of farmers____ ‘dirty all day'. I want youngsters to think ‘farming looks fun'” he said.

    At first no one seemed ____ (understand) him. Even his family was surprised by his____ (choose) of farming attire. His grandfather worried ____ (do) farm work in a suit would be dangerous.

    Now Kiyoto is famous and has been invited on various television shows. He also has a blog where he regularly ____ (post) his farming experiences and photos of himself all dressed up.

图是大白鼠细胞内某生理过程示意图，下表是其曲细精管细胞中存在的两种水通道蛋白AQP7和AQP8的部分比较．

请分析回答下列问题：

（1）图示的生理过程是____ ，在大白鼠细胞中可进行该生理过程的结构有____ ．

（2）丁与乙有何不同？____ ．

（3）从AQP7和AQP8在睾丸中的表达来看，细胞分化的原因之一是____ 的结果．

（4）控制AQP7的基因中碱基的数目为____ 个．

（5）在AQP7和AQP8合成过程中，与核糖体结合的信使RNA碱基数目相同，但AQP7和AQP8所含氨基酸数目不同，原因是（不考虑起始密码和终止密码所引起的差异）____ ．

（6）大白鼠汞中毒后，对初级精母细胞和精子的影响，哪一个更大些？____．

《共产党宣言》指出：“工人革命的第一步就是使无产阶级上升为统治阶级，争取民主。”对这一理论观点进行第一次伟大尝试的是（   ）

9的平方根是 ____ ____的立方根是﹣2