下列不等式中正确的是（ ）．
A: [img=171x51]1802cf7add98f7c.png[/img]
B: [img=171x51]1802cf7aeb31e9d.png[/img]
C: [img=186x51]1802cf7af8c2d2a.png[/img]
D: [img=188x52]1802cf7b0199b7f.png[/img]
A: [img=171x51]1802cf7add98f7c.png[/img]
B: [img=171x51]1802cf7aeb31e9d.png[/img]
C: [img=186x51]1802cf7af8c2d2a.png[/img]
D: [img=188x52]1802cf7b0199b7f.png[/img]
A
举一反三
- 下列不等式中正确的是（ ）． A: [img=171x51]18038697dc36b32.png[/img] B: [img=171x51]18038697e995e6d.png[/img] C: [img=186x51]18038697f2d2d4b.png[/img] D: [img=188x52]18038697fc99c39.png[/img]
- 下列不等式中正确的是（ ）． A: [img=171x51]1802cf8c6ed6006.png[/img] B: [img=171x51]1802cf8c7d778ba.png[/img] C: [img=186x51]1802cf8c8849690.png[/img] D: [img=188x52]1802cf8c909804d.png[/img]
- 下列不等式中正确的是（ ）． A: [img=171x51]1802dc4a52838fe.png[/img] B: [img=171x51]1802dc4a5af1a11.png[/img] C: [img=186x51]1802dc4a6840d96.png[/img] D: [img=188x52]1802dc4a716cf73.png[/img]
- 下列不等式中正确的是（ ）． A: [img=171x51]1802dc3d74aaa84.png[/img] B: [img=171x51]1802dc3d8194fc8.png[/img] C: [img=186x51]1802dc3d8e36561.png[/img] D: [img=188x52]1802dc3d96b0843.png[/img]
- 下列不等式中正确的是（ ）． A: [img=171x51]1802dc249480238.png[/img] B: [img=171x51]1802dc24a10f3cd.png[/img] C: [img=186x51]1802dc24ad7109f.png[/img] D: [img=188x52]1802dc24b486030.png[/img]
内容
- 0
下列不等式中正确的是（ ）． A: [img=171x51]1802cf90c9bd8aa.png[/img] B: [img=171x51]1802cf90d6322e3.png[/img] C: [img=186x51]1802cf90dde4881.png[/img] D: [img=188x52]1802cf90e692dd7.png[/img]
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已知F（x）是f(x)的一个原函数，则[img=79x37]17e0a9ce46a20da.jpg[/img]? A: f(x)+C B: F（x）+C C: F(x)-f(x) D: CF(x)
- 2
7、二次函数[img=120x26]18031ef2ad3cc4e.png[/img]的对称轴x=2,则f(3)＜f(2).
- 3
设X，Y为两个随机变量，且[img=179x25]1803395d555effc.png[/img] , [img=226x25]1803395d61f1a43.png[/img] ,则[img=143x25]1803395d6f00057.png[/img]= ( )． A: 1/7 B: 3/7 C: 4/7 D: 5/7
- 4
设(X,Y)的分布律为[img=317x47]18039fa216cb556.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7