题目

人的胰岛细胞能产生胰岛素，但不能产生血红蛋白，据此推测胰岛细胞中（  ） A．只有胰岛素基因                            B．比人受精卵的基因少 C．有血红蛋白基因但不转录形成相应mRNA D．有胰岛素基因和其它基因，但无血红蛋白基因 答案：CI am John. I always get up late at the weekend. At about 9:30 am, I have breakfast. After breakfast, I start doing my homework. We have lunch at about 12:00, and then I watch TV or have a rest. I like reading and I often read some interesting books in the afternoon. I like sports, too. Sometimes I play football or basketball with my friends at school. My school is near my home, so I can walk there. Every weekend, my father takes me to a restaurant for a big dinner. I can enjoy lots of nice food. I like my weekend.1.What time does John have breakfast at the weekend?A. At about 8:30 am. B. At about 9:30 am.C. At about 10:30 am. D. At about 11:30 am.2.Which is NOT true？A. John likes reading. B. John likes playing basketball.C. John likes playing football. D. John likes cooking.3.Where does John enjoy lots of nice food at the weekend?A. In a restaurant.B. At home. C. At school. D. At his friend’s home.