当今世界，国家或共同体之间越来越多的通过对话来解决所面临的问题。阅读下列材料

材料一   2009年11月APEC第十七次领导人非正式会议通过《新加坡宣言》强调，APEC的共同目标没有改变，即通过自由开放的贸易与投资，支持亚太地区经济增长与繁荣。宣言涉及如何推动可持续增长，抵制保护主义，支持多边贸易体制，加快区域经济一体化，加强经济技术合作，促进人类安全，打击腐败，提高管理水平和透明度，以及加强APEC作用等。                             ——新华网

材料二   1999年9月25日二十国集团在华盛顿成立。G20是布雷顿森林体系框架内非正式对话的一种新机制，推动发达国家和新兴市场国家之间就实质性问题进行讨论和研究，以寻求合作并促进国 际金融稳定和经济的持续增长。2010年11月将在韩国首尔举行第五次峰会。

请回答：

随着转基因技术的发展，“基因污染”应运而生，下列关于基因污染的说法，不正确的是（    ）

下列关于人类生殖和发育的叙述错误的是（    ）

____ of their bad habits, the boys switched from being dependent on their parents to ____ for others.

阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出一个最佳选项。   
    “Daddy, can I have a piece of cake？” my oldest son asked me.
We had just been to the gym and stopped to eat at the restaurant.
    “No，” I replied, “you don't need a piece of cake.”
My son 1 15 in a few days. He 2  over 6 feet tall. He is very slim and athletic in shape . It was not always that way. My wife wrote a book about the challenge and   3   of getting him fit. He now takes it  4  and looks as if he's never been overweight in his life.
    He had a full plate of vegetables and tofu.  He didn't need a piece of cake.  5 ， everything in the restaurant is quite  6 . Our dinners could have  7 a family of seven at a fast food restaurant. That cake probably  8 $5.
    He was silent as he looked at the delicious cakes. I had forgotten that I had walked over to the cake shelf while he was   9 his food from the buffet (自助餐)．
    I looked at my plate. There sitting on the edge was a piece of 10. I looked at it wondering but also knowing how it got there. “We will divide it，” I said.
    A few days later my oldest son was  11me again. We stopped at a   12  . He ordered a sandwich. I then13 two sandwiches. He immediately barked, “Can I have two？” He wanted 14what Daddy had.
    Your kids are very   15 to put on their trays, exactly what you have on yours, and I think this applies to (适用于) more than food. Keep your life plate with only what you want your kids to have.