﹣种新型试剂常用于氧化降解溶液中的有机污染物（用X表 示），在一定条件下反应开始时其浓度为2.0×10^﹣3mol•L^﹣1，反应10 min后进行测定，测得数据如图1、图2所示，则下列有关说法正确的是（　　）

    Here is some information(信息) about some people.

    I am a math teacher. I teach math very well. Do you need help with your math？Call me at 679－ 8840.(Mr. Brown)

    I lost my blue bag. It's from my mom and I like it very much. Did you find my bag？Please call me at 777－8953.(Lucy)

    I like playing the violin，but I can't play it well. Can you help me？My phone number is 235－ 7765.(Joan)

    Do you like reading？I have many old books and the books are free. Call me at 658－0034.(Mark)

    Here is some information on today's newspaper.

    FOUND

    A blue bag. I found it in the library. My name is Sue. Please call me at 889－0764.

    JOB

    Are you good at math？Are you good with kids？We need a math teacher at our middle school. My name is Nick. My e－mail is nick@gmail.com.

    MUSIC CLUB

    Do you want to be a musician？Do you want to learn how to play the piano and the violin well？ Come to our club. Only 20 yuan for one lesson. Call Susan at 776－9898.

    BOOKS NEEDED

    We want to build a library for the kids in a small village. We need many books. Please call Mr. Han at 458－2217.

下列关于无脊椎动物的叙述中，正确的是（　　）

今天西安的大雁塔（下图）就是当年玄奘大师保存佛经的地方，这些佛经是从哪国取回的（    ）