One evening I went to have dinner with my uncle and aunt. They had 1invited another person, a young woman, so that there would be four people at 2. Her face was familiar (面熟的). I was quite 3　that we had met 4, but I could not 5　where I had seen her face. In the course of the talk, however, the young woman6to tell us that she had lost her purse the other day. All at once I remembered where I had seen her face. She was just the young girl in the photo in the purse I had picked up while walking down the street that afternoon, although she looked much older. She was7, of course, when I was 8　to describe her purse to her. Then I explained (解释) that I had recognized (认出) her from the photo I had found in the purse. My uncle insisted on going to the police station immediately to fetch the purse.
   As the policeman handed it 9 he said I had found not10the purse, but the person who had lost it.

已知全集U=R,集合A=$\left\{y|y=x^2\right\}$，集合B=$\left\{y|y=2^x\right\}$，则$A\cap C_{U}B$为（ ）。

A“朗”字用音序查字法，应先查____，再查____。用部首查字法，应先查____部，再查_____画。我能给它扩词：____、____、____。

B“制”字在字典中的解释有四种：①制造；②拟订；③用强力约束，限定；④制度。在“研制”这个词中应选择第____种解释。

（Ⅰ）若比赛前随机从两队的6个选手中抽取两名选手进行示范，求抽到的两名选手在同一个队的概率；

（Ⅱ）用ξ表示甲队的总得分，求随机变量ξ的分布列和数学期望；

（Ⅲ）求两队得分之和大于4的概率．