逻辑函数F=AB+[img=14x24]17e43db17bde337.jpg[/img]D,其反函数[img=12x24]17e43db184fa8ba.jpg[/img]为( )
未知类型:{'options': ['(A+B)([img=14x24]17e43db18d92bfb.jpg[/img]+[img=14x24]17e43db196a9131.jpg[/img])', ' ([img=14x24]17e43db17bde337.jpg[/img]+B)([img=14x24]17e43db18d92bfb.jpg[/img]+D)', ' (A+[img=14x24]17e43db1a047788.jpg[/img])(C+[img=14x24]17e43db196a9131.jpg[/img])', ' (A+B)(C+D)'], 'type': 102}
未知类型:{'options': ['(A+B)([img=14x24]17e43db18d92bfb.jpg[/img]+[img=14x24]17e43db196a9131.jpg[/img])', ' ([img=14x24]17e43db17bde337.jpg[/img]+B)([img=14x24]17e43db18d92bfb.jpg[/img]+D)', ' (A+[img=14x24]17e43db1a047788.jpg[/img])(C+[img=14x24]17e43db196a9131.jpg[/img])', ' (A+B)(C+D)'], 'type': 102}
举一反三
- 其他条件不变时,当税收增加[img=14x24]17e43c3ac2c6638.png[/img]时,IS曲线( ) 未知类型:{'options': ['左移[img=14x24]17e43c3ac2c6638.png[/img]', ' 左移[img=14x24]17e43c3ac2c6638.png[/img] X税收乘数', ' 右移[img=14x24]17e43c3ac2c6638.png[/img] X税收乘数', ' 右移。'], 'type': 102}
- 已知随机变量X的分布列如下:[img=386x130]17e43ec4c459e73.png[/img],则E(X)= A: 17/30 B: m未知,无法求出 C: -30/17 D: -17/30
- 在一天24小时内,从零点开始每间隔2小时测得的环境温度数据如下表,请推测上午11点的温度,并做出24小时温度曲线图。 时间 0 2 4 6 8 10 12 14 16 18 20 22 24 温度 14 14 13 12 17 21 24 24 24 21 17 16 14 程序如下: t=0:2:24; T=[14 14 13 12 17 21 24 24 24 21 17 16 14 ]; t11=11; T11=________________________%用三次样条插值
- Is there a relationship between the electric field [img=14x24]1803a376c9db0a5.png[/img] and magnetic field [img=14x24]1803a376d21ab6b.png[/img] of an electromagnetic wave at each point in vacuum? A: No any relationship. B: Yes, [img=14x24]1803a376db08c62.png[/img] is perpendicular to [img=14x24]1803a376e3d9bc3.png[/img] and [img=59x19]1803a376eca6699.png[/img]. C: Yes, [img=14x24]1803a376db08c62.png[/img] is parallel to [img=14x24]1803a376e3d9bc3.png[/img] and [img=59x19]1803a376eca6699.png[/img]. D: No relationship in direction but [img=59x19]1803a376eca6699.png[/img] in magnitude.
- 设X为随机变量,且E(X)= −1,Var(X)=3,则[img=136x31]1803b3be69ca3f3.png[/img] A: 18 B: 9 C: 30 D: 14