元素周期表是学习研究化学的重要工具．下表是1～18号元素的部分最高正化合价和最低负化合价规律信息：

1H +1							2He 0
3Li +1	4Be +2	5B +3	6C +4﹣4	7N +5﹣3	8O ﹣2	9F ﹣1	10Ne 0
11Na +1	12Mg +2	13Al +3	14Si ﹣4	15P +5﹣3	16S +6﹣2	17Cl	18Ar 0

请分析信息并回答下列问题：

甲、乙两图为真核细胞中发生的代谢过程的示意图，下列有关说法不正确的是（　　）

 根据对话内容，用方框中所给单词的适当形式填空，每词限用一次。

water    no    Earth    it    for

Bill: I saw a great programme on TV about space yesterday evening.
Tony: What is ____ about?  
Bill: Scientists have discovered ____ on Mars.
Tony: Really? That's very fantastic. Have they discovered life on Mars?
Bill: Well, they're looking____  life but they haven’t found anything yet.
Tony: I know there's ____ life on the moon.
Bill: Yes, that's right. So far there's only life on ____ .
Tony: Are we alone with so many stars in the universe?
Bill: I am interested in it, so I want to be a scientist when I grow up.
Tony: I wish you will.

尿液排出体外的正确途径是（　　）

电阻R₁、R₂与交流电源按照图所示甲方式连接，R₁＝10 Ω，R₂＝20 Ω.合上开关S后，通过电阻R₂的正弦交变电流i随时间t变化的情况如图乙所示．则 (　　)