配套习题- 对数的定义 -【青果学院】

1/4单选题

难度：

1.在对数式

中，a,N的范围是（）

A
B
C
D

正确答案：Qw==

6Kej5p6Q77ya5Zyo5a+55pWw5byPPGltZyB3aWR0aD02MiBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wQy9BNy9yQkFDRTFRU2J5YWlreklFQUFBQ0l1Z0gwT0k3NzQucG5nIj7kuK0sIOW6leaVsDxpbWcgd2lkdGg9ODkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRjYvMDUvckJBQ0ZGUVNieXlTRWx5akFBQUNERlF3ZVFRNDgwLnBuZyI+55yf5pWwTuWkp+S6jjAs5omA5Lul6YCJ5oupQw==

2/4单选题

难度：

2.若

3=4,则

A
B
C
D	算不出具体的值

正确答案：QQ==

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

3/4单选题

难度：

3.若

,则

等于多少？

A
B
C
D

正确答案：Qg==

6Kej5p6Q77ya5a+55pWw5byP5YWI5YyW5oiQ5oyH5pWw5byP77yMPGltZyB3aWR0aD04MCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wQy9BNy9yQkFDRTFRU2I3aUNjRGV5QUFBQ1ZPSWYwaVE2NDIucG5nIj4s5YiZPGltZyB3aWR0aD0xMDEgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMEMvQTcvckJBQ0UxUVNiN3p3al92TUFBQUNsdXVJRFI0MTM1LnBuZyI+

4/4单选题

难度：

4.若

,则

的值是（）

A
B
C	1
D

正确答案：QQ==

6Kej5p6Q77ya5YWI5oqK5a+55pWw5byP5YyW5oiQ5oyH5pWw5byP77yM5YiZPGltZyB3aWR0aD0xMjEgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRjYvMDUvckJBQ0ZGUVNiOHJocTdPbEFBQUNjbHlOeHdRMDYxLnBuZyI+77yMPGltZyB3aWR0aD0xNzIgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRjYvMDUvckJBQ0ZGUVNiOHZTMFgtQkFBQURod085UmRzOTI2LnBuZyI+