根据下面材料，回答45～48题： 赵刚持有的证券组合由证券Ⅰ和证券Ⅱ组成，具体信息

函数y=-2x-3和y=-x-1的图象的交点坐标是______．

[案例]
甲有一块价值10000元的玉石。甲与乙订立了买卖该玉石的合同，约定价金11000元。由于乙没有带钱，甲未将该玉石交付与乙，约定二三日后乙到甲的住处付钱取玉石。随后甲又向乙提出，再借用玉石把玩几天，乙表示同意。隔天，知情的丙找到甲，提出愿以12000元购买该玉石，甲同意并当场将玉石交给丙。丙在回家路上遇到债主丁，向丙催要9000元欠款甚急，丙无奈，将玉石交付与丁抵偿债务。后丁将玉石丢失被戊拾得，戊将其转卖给己。
要求：
根据上述内容，分别回答下列问题：

关于该玉石的返还问题，下列说法中，正确的有______。

A．己已取得了该玉石的所有权，原所有权人无权请求返还该玉石

B．该玉石的真正所有权人请求己返还该玉石不受时间限制

C．该玉石的真正所有权人可以在戊与己的转让行为生效之日起两年内请求已返还该玉石

D．该玉石的真正所有权人可以在知道或者应当知道该玉石的受让人己之日起两年内清求己返还该玉石

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

Here are some comments on Li Hua from his classmates.

Lily said, "Li Hua is the smartest student in our class and usually scores the highest marks in the English and mathematics exams. His homework and assignments are always done to a very high standard so our teachers ask us to follow his example. We all admire his intelligence."

Kate said, "Li Hua is really a hard-working student. He spends at least four hours every day reviewing his lessons and his homework is never late. As the exams get closer he becomes even more diligent and works into the early hours of the morning, making sure he has gone over all of the information covered in our classes."

John said, "Li Hua is the kind of person who is easy to co-operate with. Although he's very clever he is still willing to listen to others' opinions and take their suggestions. When we do groupwork in class we all want to be in his group because he always does his share of the work and is easy to get along with."

Tim said, "Li Hua is the class monitor and the most helpful student in our class. He always makes sure the classroom is kept clean and assists the teacher in handing out and collecting the students' books and homework. When a student is absent from school he will call and tell them what they have missed."

【写作内容】

假设你叫李平，你的同学李华拟申请到美国某大学学习。申请材料需包括同伴的推荐信。李华邀请你为他写一封推荐信。上文是其他同学对李华的一些评价，请根据这些材料和你自己对李华的看法，写一封推荐信。以下是信的内容（信的开头和结尾已经为你写好）：

1. 以约30个词概括同学们眼中李华的特点和优点；

2. 以约120个词表达你对李华的看法，并包括如下要点：

⑴ 你对同学们评价意见的看法；

⑵ 以你和李华之间的经历来说明其中的一点看法。

【写作要求】

1. 作文中可使用自己的亲身经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中的句子；

2. 信中不能出现真实的姓名和学校名称。

日本过去的家族制度是（）。

A.民主的

B.专横的

C.法制的

D.灵活的

发现火险，应立即拨火警电话119，应报告火险发生的时间、（）、燃烧物及火险现场有无易燃易爆危险品等情况。