问题
单项选择题
下列为含有B族维生素的辅酶，例外的是
A．辅酶A
B．四氢叶酸
C．细胞色素b
D．磷酸吡哆醛
E．硫胺素焦磷酸
答案
参考答案：C
解析：细胞色素b不含B族维生素。叶酸、吡哆醛、硫胺素均属B族维生素，辅酶A所含泛酸亦为B族维生素。
搜题请搜索小程序“爱下问搜题”
下列为含有B族维生素的辅酶，例外的是
A．辅酶A
B．四氢叶酸
C．细胞色素b
D．磷酸吡哆醛
E．硫胺素焦磷酸
参考答案：C
解析：细胞色素b不含B族维生素。叶酸、吡哆醛、硫胺素均属B族维生素，辅酶A所含泛酸亦为B族维生素。
| 补全对话。 | |
| A: 1______ can you tell me the time, please? B: Sure, it's eight thirty-eight. A: The buses are getting late these days. B: I hope it won't be too late today. I must get back to school before 9 o'clock. A: I hope you 2______. Where are you from? B: I'm from Shanghai. I'm studying here. A: 3______ B: History. A: My goodness! That sounds difficult. 4______ B: Six months. A: Ah. Here's the bus. Well, have a good day and 5______. B: Thanks.
|
污染环境的能源，是 环境恶化的正确选择。