A:∀n∈N*,f(n)∉N* 且 f(n)>n
B:∀n∈N*,f(n)∉N* 或 f(n)>n
C:∃n0∈N*,f(n0)∉N* 且 f(n0)>n0
D:∃n0∈N*,f(n0)∈N* 或 f(n0)>n0
Don't be nervous. Please deep , and then answer my questions.
等物质的量的SO2和SO3相比较,下列结论错误的是( )
2016年1月6日是24节气中的小寒,该日我县上空飘起了2016年的第一场雪,它和着细雨,滋润着大地.看图完成后面小题:
Hello! My name is Peter. I am a student. I often have busy days. I ____ at 6:30 in the morning. I ____ at home. Then I ____ at 7:10. I____ at 7:30. I ____ at 11:45. In the afternoon, we ____ class. After school, I ____ with my friends. In the evening, I ____ or ____ . I____ at 9:00. This is my day.