8 |
6 |
7 |
5 |
8 |
6 |
7 |
5 |
8 |
5 |
6 |
7 |
8 |
5 |
6 |
7 |
40 |
42 |
40 |
42 |
8 |
6 |
7 |
5 |
1 |
2 |
1 |
2 |
1 |
2 |
A.b<c<a | B.b<a<c | C.c<a<b | D.c<b<a |
A.若a>b>0,c<0,则
| B.若a>b>0,c>d,则ac>bd. | ||||
C.若a>b,c>d,则a-c<b-d. | D.若a>b,ab>0,则
|
1 |
a |
1 |
b |
A.1 | B.2 | C.3 | D.4 |
1 |
ac |
1 |
a |
a |
b |
A.a+b>0 | B.ac<bc | C.a-b<0 | D.a2<b2 |
© 2017-2019 超级试练试题库,All Rights Reserved.