A: [img=171x51]1802dc4a52838fe.png[/img]
B: [img=171x51]1802dc4a5af1a11.png[/img]
C: [img=186x51]1802dc4a6840d96.png[/img]
D: [img=188x52]1802dc4a716cf73.png[/img]
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]1802cf7add98f7c.png[/img] B: [img=171x51]1802cf7aeb31e9d.png[/img] C: [img=186x51]1802cf7af8c2d2a.png[/img] D: [img=188x52]1802cf7b0199b7f.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]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]
- 1
下列4个等式中成立的有（ ）个。[img=171x51]1802da29689d035.png[/img], [img=160x47]1802da29700f2e8.png[/img], [img=164x49]1802da297a42269.png[/img], [img=163x51]1802da2984905f6.png[/img] A: 1 B: 2 C: 3 D: 4
- 2
下列4个等式中成立的有（ ）个。[img=171x51]17de90f4421b33f.png[/img], [img=160x47]17de90f44f4c00b.png[/img], [img=164x49]17de90f45bff9ed.png[/img], [img=163x51]17de90f468a04d6.png[/img] A: 1 B: 2 C: 3 D: 4
- 3
求不定积分[img=115x46]17da65382f8e1b9.png[/img]； （ ） A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 4
已知随机变量X的分布函数为[img=136x49]1803b69024c8270.png[/img] ，则X的均值和方差分别为 A: E(X)=2, D(X)=4 B: E(X)=4, D(x)=2 C: [img=162x43]1803b6902cd8bfb.png[/img] D: [img=162x43]1803b69034d9ffd.png[/img]