题目

经测定某化合物含C、H、O、N、S元素，该化合物不可能具有的一项功能是         A．与抗原发生特异性结合                        B．用于基因工程获得黏性末端 C．用于精子、卵细胞的相互识别                D．细胞中蛋白质合成的直接模板 答案：D阅读理解，根据短文内容选择正确答案。 My name is John Smith. I live in London. I am an engineer. I work for a telephone company. I like different food. From Monday to Friday, I work hard. I eat simply. I have a large piece of cake and a bottle of milk for my breakfast. I have a small lunch. I usually eat a small sandwich and a large bottle of juice. I have fish and chips for my supper. After supper I have a chocolate ice-cream for my dessert(餐后甜点). On Saturdays and Sundays, I go to China Town. I have a bowl of rice and some meat and vegetable. Sometimes I eat Jiaozi or dumplings. They are delicious. I like Chinese food for my Saturday and Sunday supper.【1】John Smith is . ( )A. an English manB. a Chinese manC. a wonderful cook【2】 is/are his lunch food. ( )A. Chocolate ice-creamB. Chinese foodC. Sandwiches and juice【3】He has Chinese food . ( )A. in his companyB. at homeC. in China Town【4】He eats Chinese food . ( )A. on MondayB. on weekendsC. on week days【5】Many English people have after supper. ( )A. dessertB. milkC. dumplings