下列阴离子中亲核性最强的是[br][/br]
未知类型：{'options': ['[tex=5.143x1.429]F8ZOKmxI14/0o2cUuWuqZXVhf3V4XNON13VuQTKLPY80ktSLoU8zyB+D3r6PvQGN[/tex]', '[tex=3.643x1.357]NGnn3LLOZuPCzG9aPvUc+xC+nReyFmRPGCA28CU56bw=[/tex]', '[tex=5.214x1.357]+Kan9e5En9e94u8dwrB1SwJShS6z+m/ihZRGZmz8LDU=[/tex]', '[tex=2.214x1.143]uZIXqml5oxA6zWRFN/MMFw==[/tex]'], 'type': 102}
未知类型：{'options': ['[tex=5.143x1.429]F8ZOKmxI14/0o2cUuWuqZXVhf3V4XNON13VuQTKLPY80ktSLoU8zyB+D3r6PvQGN[/tex]', '[tex=3.643x1.357]NGnn3LLOZuPCzG9aPvUc+xC+nReyFmRPGCA28CU56bw=[/tex]', '[tex=5.214x1.357]+Kan9e5En9e94u8dwrB1SwJShS6z+m/ihZRGZmz8LDU=[/tex]', '[tex=2.214x1.143]uZIXqml5oxA6zWRFN/MMFw==[/tex]'], 'type': 102}
举一反三
- 下面几种化合物中碱性最强的是 未知类型：{'options': ['[tex=3.286x1.357]xyuM3GtnowNxdh9/0T2Qp+M68ZPbrLulPboagn0YYYA=[/tex]', '[tex=5.286x1.429]F8ZOKmxI14/0o2cUuWuqZXVhf3V4XNON13VuQTKLPY80ktSLoU8zyB+D3r6PvQGN[/tex]', '[tex=6.143x1.429]F8ZOKmxI14/0o2cUuWuqZQ5SbJw64fwytL2jjZ8a9okLSu0F/F7pM8GJy0SBLrBO[/tex]', '[tex=5.214x1.357]+Kan9e5En9e94u8dwrB1SwJShS6z+m/ihZRGZmz8LDU=[/tex]'], 'type': 102}
- 设[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]是 3 阶矩阵，且[tex=2.643x1.357]h0pLE8vvleI3SS/lZLfCsw==[/tex]，则[tex=4.143x1.357]TzVoItsLVWI00YVI4rvLQQ==[/tex]( ). 未知类型：{'options': ['2', '-2', '8', '-8'], 'type': 102}
- 给定平面图[tex=0.786x1.0]LyvDGollVJ+xwurtsLcn0g==[/tex]如图6.17所示，平面图的面数是（ ）.[img=355x220]178646b659a6f03.png[/img] 未知类型：{'options': ['6', '5', '8', '9'], 'type': 102}
- 若要将一个长度为N=16的序列x(n)重新位倒序,作为某一FFT算法的输入,则位倒序后序列的样本序号为( )。 A: x(15), x(14), x(13), x(12), x(11), x(10), x(9), x(8), x(7), x(6),<br/>x(5), x(4), x(3), x(2), x(1), x(0) B: x(0), x(4), x(2), x(6), x(1), x(5), x(3), x(7), x(8), x(12), x(10),<br/>x(14), x(9), x(13), x(11), x(15) C: x(0), x(2), x(4), x(6), x(8), x(10), x(12), x(14), x(1), x(3), x(5),<br/>x(7), x(9), x(11), x(13), x(15) D: x(0), x(8), x(4), x(12), x(2), x(10), x(6), x(14), x(1), x(9), x(5),<br/>x(13), x(3), x(11), x(7), x(15)
- 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]