题目

从II栏中找出I栏句子的正确答语 I栏                                        II栏 (      )1. Is this your soccer, Jim?                   A. I like both soccer and ping-pong. (      )2. What’s this in English?                     B. That sounds good, Helen. (      )3. Do you have a soccer?                      C. Yes, it’s interesting. (      )4. Where’s your ping-pong bat, please?  D. It’s in my backpack. (      )5. Let’s play tennis, Eri某箱装有30个零件，其中5件次品，现从中任意取出4件，用X表示取到次品的件数，列出X的分布列，并求出：（1）所取出的4件零件中没有次品的概率；（2）所取出的4件零件中恰有2件次品的概率；（3）所取出的4件零件中至多有2件次品的概率．