A:A
B:B
C:C
D:D
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.
图为某海域生态系统中,生产者固定太阳能与水深关系曲线,虚线表示近海水域,实线表示远洋水域.
现有如下的运算法则:logaan=n.logNM= lognMlognN (a>0,a≠1,N>0,N≠1,M>0).
例如:log223=3,log25= log105log102 ,则log1001000=____.
5+2____8
6-3____4