A.a≥b | B.a≤b | C.a>b | D.a<b |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
π |
2 |
1 |
x |
c |
a |
c |
b |
a+m |
b+m |
a |
b |
A.4 | B.3 | C.2 | D.1 |
A.a2+b2≥2ab,(a,b∈R) | B.a2+3>2a,(a,b∈R) | ||||||||
C.x+
| D.
|
A.(
| B.(
| ||||
C.(
| D.以上均不对 |
A.b2<a2 | B.
| C.-b<-a | D.a-b>a+b |
A.a<b<c | B.b<c<a | C.c<a<b | D.c<b<a |
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