如图是某生态系统中食物网简图，图中A～G分别表示不同种类生物。请回答：

根据短文内容，选择正确答案。

    David did well in all his subjects except physics, Mr. Brown, his physics teacher, gave him his physics paper and said to him, “Show it to your dad and ask him to sign his name on the paper.”

    David played football until it was 7 o'clock. When he got home, his parents had finished supper. His dad was watching TV and his mother was doing the dishes in the kitchen as usual.

 “Dad, may I ask you some questions?” David asked happily.

 “Yes, of course,” answered his dad.

 “If you can't answer them, you'll have to do something for me.”

 “OK, I'll do as you tell me,” said his dad.

 “Which is cooler, walking or sitting in the sun?”

 “Walking is cooler. It can make wind.”

 “Which clothes can keep out (阻挡）the sunlight，shirts or coats?”

 “Coats can keep out the sunlight because they are much thicker than shirts.” “Is a man smart if he wears a coat and walks in the sun in summer?” David looked at his dad and waited for his answer. His dad thought for a minute and shook his head.

   David took out his paper, “Now sign your name on the paper, please.”

看下图，A点的经纬度正确的是： （     ）                          

材料一：第一份名单：傅以渐、王式丹、毕沅、林召堂、王云锦、刘子壮、陈沆、刘福姚、刘春霖。第二份名单：曹雪芹、胡雪岩、李渔、顾炎武、金圣叹、黄宗羲、吴敬梓、蒲松龄、洪秀全、袁世凯。前者全是清朝科举状元，后者全是当时落第秀才。（微信朋友圈文章《这名单你认识多少？》）

材料二：魏鹏涛是南京一家煎饼果子店的老板，大学毕业后他运用自己电子商务专业知识打理煎饼店，一步步做起，现在月收入13万，未来的小目标是在南京打造“煎饼联盟”。同样是卖煎饼，早前有一个北京大妈被顾客怀疑少打了一个鸡蛋，吐槽：“我月入3万，怎么会少你一个鸡蛋！”

材料三：作家龙应台对孩子说：孩子，我要求你读书用功，是因为，我希望你将来会拥有选择的权利，选择有意义、有时间的工作，而不是被迫谋生。

以上材料有没有引起你对读书是否有用的思考？请以“我看‘读书的用处’”或“我看‘读书无用论’”为副标题，写一篇文章，阐述你的看法和理由。要求：选好角度，明确文体，自拟标题；不要套作，不得抄袭；不少于800字。