A.-2a>-2b | B.a2>b2 | C.
| D.3a>3b |
1 |
2 |
1 |
-3 |
1 |
a |
1 |
b |
c |
a |
c |
b |
A.1个 | B.2个 | C.3个 | D.4个 |
1 |
b |
1 |
1+a |
1 |
1+b |
a |
1+a |
b |
1+b |
A.M>N | B.M<N | C.M=N | D.不确定 |
n | a |
n | b |
A.f(x1)<f(x2) | B.f(x1)=f(x2) | C.f(x1)>f(x2) | D.不确定 |
a |
1+a |
b |
1+b |
c |
1+c |
a+b |
1+a+b |
A.M<N<Q | B.M<Q<N | C.Q<N<M | D.N<Q<M |
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