What would Rick like to eat?    

(Ⅰ)若 $\sin \angle BAC=\frac{1}{4}$ ,求 $\sin \angle BCA$ ；

(Ⅱ)若 $AD=3AC$ ,求 $AC$ .

    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.

中国信息产业网2011年12月21日讯 入世10年来，中国成为经济全球化和区域经济一体化的参与者、推动者和受益者，对外贸易和经济都取得了迅猛发展．商务部部长陈德铭此前表示，未来十年，中国将坚持更加积极主动的开放战略，更加积极主动地参与经济全球化，实现互利共赢

中国没有加入的国际组织是（　　）

下列句中划线的词的解释不正确的一项是（ ）