一高压容器中含有末知气体, 可能是[tex=1.214x1.214]fDvbj5thyHcfDFTNdk3KeQ==[/tex] 或 [tex=1.214x1.0]Ru/y7SDD+8osNXSZHfkP2w==[/tex].在[tex=2.357x1.0]/NnQehdlK2QR+QNALFVBUw==[/tex] 时取出试样, 从 [tex=4.5x1.357]BgP3tO7gaktd7g1gtXR6Esh2JcxaByq/M/HnhZ+iYl4=[/tex] 绝热膨胀到[tex=4.5x1.357]ti0AV7eo0YpbmG1O+7sKrb3o5s5vC2SDnxblC0Qegug=[/tex], 温度降到 [tex=2.357x1.0]9A1rKUkhFrr5IZkfh3Y9oA==[/tex]. 试判断容器中是什么气体?
举一反三
- 一高压容器中含有未知气体,可能是[tex=1.214x1.214]fDvbj5thyHcfDFTNdk3KeQ==[/tex]或[tex=1.214x1.0]Ru/y7SDD+8osNXSZHfkP2w==[/tex]。在[tex=2.357x1.0]/NnQehdlK2QR+QNALFVBUw==[/tex] 时取出试样,从[tex=4.929x1.357]BgP3tO7gaktd7g1gtXR6Esh2JcxaByq/M/HnhZ+iYl4=[/tex]绝热膨胀到[tex=4.929x1.357]ti0AV7eo0YpbmG1O+7sKrb3o5s5vC2SDnxblC0Qegug=[/tex],温度降到 [tex=2.357x1.0]9A1rKUkhFrr5IZkfh3Y9oA==[/tex]。试判断容器中是什么气体?
- 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 。
- 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]
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 下列哪条语句是正确的( ) A: A=[1 2;3 4];B=[3;7];A.*B; B: A=cell(2,3);A(1,2)=[4;5]; C: A=[2 3 5 7;9 4 6 1;7 3 2 5];B=[1 7;0 5];A(2:end,2:2:end) D: x=-5:5;y=-5:5;z=x.*x-y.*y;surf(x,y,z);