1 |
4 |
8-
| ||
x |
8 |
x |
x |
4 |
2 |
| ||
2 |
3 |
2 |
2 |
16 |
x |
6+4
|
3 |
2 |
2 |
16 |
x |
2 |
2 |
AB |
AC |
3 |
1 |
2 |
1 |
x |
4 |
y |
A.20 | B.18 | C.16 | D.9 |
A.xy的最大值是4,且x+y的最小值是4 |
B.xy的最小值是4,且x+y的最大值是4 |
C.xy的最大值是4,且x+y的最大值是4 |
D.xy的最小值是4,且x+y的最小值是4 |
1 |
2a |
1 |
b |
A.5,5 | B.10,
| C.10,5 | D.10,10 |
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