一个有符号的二进制数[img=100x25]1802fa73d13e5c9.png[/img]。它的反码和补码分别是
A: [img=100x25]1802fa73d96306a.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
B: [img=100x25]1802fa73e9cb339.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
C: [img=100x25]1802fa73fa9457a.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
D: [img=100x25]1802fa73d96306a.png[/img], [img=100x25]1802fa73e9cb339.png[/img]
A: [img=100x25]1802fa73d96306a.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
B: [img=100x25]1802fa73e9cb339.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
C: [img=100x25]1802fa73fa9457a.png[/img], [img=100x25]1802fa73e1566c4.png[/img]
D: [img=100x25]1802fa73d96306a.png[/img], [img=100x25]1802fa73e9cb339.png[/img]
举一反三
- 一个有符号的二进制数[img=100x25]1802fa73d1c69fb.png[/img]。它的反码和补码分别是哪一个？ A: [img=100x25]1802fa73d97aea7.png[/img], [img=100x25]1802fa73e167336.png[/img] B: [img=100x25]1802fa73e9a5697.png[/img], [img=100x25]1802fa73e167336.png[/img] C: [img=100x25]1802fa73fa767ae.png[/img], [img=100x25]1802fa73e167336.png[/img] D: [img=100x25]1802fa73d97aea7.png[/img], [img=100x25]1802fa73e9a5697.png[/img]
- 图中各个力之间的关系 。[img=256x135]18038b03730a360.png[/img] A: [img=131x25]18038b037c73ea5.png[/img] B: [img=100x25]18038b03861debd.png[/img] C: [img=100x25]18038b03861debd.png[/img] D: [img=100x25]18038b039703d6d.png[/img]
- 图中各个力之间的关系 。[img=256x135]1802d572cbdf585.png[/img] A: [img=131x25]1802d572d4143fd.png[/img] B: [img=100x25]1802d572dc7cb3c.png[/img] C: [img=100x25]1802d572dc7cb3c.png[/img] D: [img=100x25]1802d572eea91af.png[/img]
- 下列各组混合液中，可作为缓冲溶液使用的是 。 A: [img=100x25]1803dcfc94d5861.png[/img]HCl与[img=100x25]1803dcfc94d5861.png[/img]NaOH等体积混合 B: [img=100x25]1803dcfc94d5861.png[/img]HAc与[img=100x25]1803dcfc94d5861.png[/img]NaAc等体积混合 C: [img=100x25]1803dcfc94d5861.png[/img][img=72x22]1803dcfcc15b3cf.png[/img]与[img=100x25]1803dcfc94d5861.png[/img]NaOH等体积混合 D: 1 mL [img=100x25]1803dcfc94d5861.png[/img][img=88x22]1803dcfcdbc246e.png[/img]与1 mL [img=100x25]1803dcfc94d5861.png[/img][img=54x22]1803dcfcec45064.png[/img]及1 L的水相混合
- 图示一正方体，边长为a，力F沿EC作用。则该力对x轴的矩为：Mx=______________[img=335x335]180347ed70f63f6.png[/img] A: Fa B: -Fa C: [img=148x147]180347ed7c5dfd3.png[/img] D: [img=161x127]180347ed874c7cd.png[/img]