ab |
cd |
ma+nc |
|
A.P≥Q | B.P≤Q | C.P>Q | D.P<Q |
ma+nc |
|
(ma+nc)(
|
ab+cd+ad•
|
ab+cd+2
|
ab |
cd |
m |
n |
n |
m |
1 |
a |
1 |
b |
A.1个 | B.2个 | C.3个 | D.4个 |
A.b-a>0 | B.a3+b3<0 | C.a2-b2<0 | D.b+a>0 |
x1 |
1+a |
ax2 |
1+a |
ax1 |
1+a |
x2 |
1+a |
A.x1x2>y1y2 | B.x1x2=y1y2 |
C.x1x2<y1y2 | D.不能确定,与a有关 |
π |
4 |
| ||
2 |
a |
c-a |
b |
c-b |
© 2017-2019 超级试练试题库,All Rights Reserved.