A.f(n)有最小值,且最小值为
| ||
B.f(n)有最大值,且最大值为
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C.f(n)有最小值,且最小值为
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D.f(n)有最大值,且最大值为
|
2 |
5 |
1 |
n+1 |
2 |
5n+5 |
3 |
5 |
n |
n+1 |
3n |
5n+5 |
2 |
5n+5 |
3n |
5n+5 |
3n+2 |
5n+5 |
3(n+1)-1 |
5(n+1) |
3 |
5 |
1 |
5(n+1) |
3 |
5 |
1 |
5×2 |
1 |
2 |
1 |
2 |
A.3件都是正品 | B.至少有1件正品 |
C.至多有1件正品 | D.至少有1件是次品 |
A.
| B.
| C.
| D.
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