下列规则中正确的是
未知类型:{'options': ['若[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex],[tex=3.786x1.0]NK6YPNE8VfopdbJfkXPzZA==[/tex],则[tex=4.071x1.0]hzEgO7e1JVYVcYYHB8RT1Q==[/tex]', '若[tex=2.786x1.143]S7L+cf7Oo1RCxRSuzMtv3A==[/tex],则[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex]', '若[tex=3.714x1.0]8hMoo7AZt67EYn9gg8VTCvxoevGbj8368Z20QJF2+JU=[/tex],则[tex=6.071x1.286]5rNIiFQbdjDNEbBfAf3MzlvzJDitAv7AbUno39Q6Z5w=[/tex]', '若[tex=4.071x1.0]wZRyY7d1tIqz1Ggl0zw3Mg==[/tex],则[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex]'], 'type': 102}
未知类型:{'options': ['若[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex],[tex=3.786x1.0]NK6YPNE8VfopdbJfkXPzZA==[/tex],则[tex=4.071x1.0]hzEgO7e1JVYVcYYHB8RT1Q==[/tex]', '若[tex=2.786x1.143]S7L+cf7Oo1RCxRSuzMtv3A==[/tex],则[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex]', '若[tex=3.714x1.0]8hMoo7AZt67EYn9gg8VTCvxoevGbj8368Z20QJF2+JU=[/tex],则[tex=6.071x1.286]5rNIiFQbdjDNEbBfAf3MzlvzJDitAv7AbUno39Q6Z5w=[/tex]', '若[tex=4.071x1.0]wZRyY7d1tIqz1Ggl0zw3Mg==[/tex],则[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex]'], 'type': 102}
举一反三
- 如果[tex=3.0x1.0]AmCcQlcdUx6ctmh1Gwwi6g==[/tex]和[tex=3.786x1.0]NK6YPNE8VfopdbJfkXPzZA==[/tex]成立,则[tex=4.071x1.0]hzEgO7e1JVYVcYYHB8RT1Q==[/tex]成立。这条推理规则称为[input=type:blank,size:4][/input]
- 判断下列命题是否为真:(1)[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex](2)[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex](3)[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex](4)[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex](5)[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex](6)[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex](7)若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex],则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex](8)若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex],则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个,其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex],有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]:(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。
- 设 [tex=11.571x1.429]gOCw35eXCPlhsXNkH3vGJ2nCf0gnRvbOf4ZK7uHpUPKHGC1sUa9zy/9myYOeb46o0bLimJxOfhub42EjSg19y2ytSXXnp+r42HGNSvIOQ2s=[/tex] 证明:1) 若 [tex=2.786x1.0]vr7yoFJHO2kH+UdCecodvQ==[/tex],则 [tex=2.071x1.0]rBm68QKf5ESxxsG7JHuShQ==[/tex];2) 若 [tex=3.0x1.0]OksMgKksETykdhFWbca1vw==[/tex],则 [tex=2.357x1.214]IjUzi6yZYTtdImtg3A832Q==[/tex].
- 某人对商品x的需求函数是[tex=5.214x1.214]0m6eBd5eyK0NjuxeKfwtIw==[/tex],[tex=4.214x1.214]I717YsPbj8Rnym1v2XQ+sFNkUl7mqUsGwbjwjXmy2xc=[/tex],这里[tex=0.571x1.0]Za328cIB4SeR7rrzY+MM5Q==[/tex]是[tex=0.571x0.786]ZSLOI4fiO1oAbVC5M8IVkA==[/tex]的价格。如果商品x 的价格是0.5元,那么他对商品x的需求价格弹性是 未知类型:{'options': ['-10', '- 1/5', '-1/10', '\xa0- 1/3'], 'type': 102}