用最小成本法化简下面的卡诺图,结果为( )A、A2A1'A0+A3A1A0+A3A1'A0'+A2A1A0' B、A3A2A1'A0+ A3'A2A1A0'+ A3A1'A0' +A3A2'A1A0 C、A2A1'A0+A3'A2A1A0+A3A1'A0'+A2A1A0' D、A3A2A1'A0+A3A2+A3A1'A0'+A2A1A0'[img=200x183]1803df83bdf78d9.png[/img]
A: A、A2A1'A0+A3A1A0+A3A1'A0'+A2A1A0'
B: B、A3A2A1'A0+ A3'A2A1A0'+ A3A1'A0' +A3A2'A1A0
C: C、A2A1'A0+A3'A2A1A0+A3A1'A0'+A2A1A0'
D: D、A3A2A1'A0+A3A2+A3A1'A0'+A2A1A0'
A: A、A2A1'A0+A3A1A0+A3A1'A0'+A2A1A0'
B: B、A3A2A1'A0+ A3'A2A1A0'+ A3A1'A0' +A3A2'A1A0
C: C、A2A1'A0+A3'A2A1A0+A3A1'A0'+A2A1A0'
D: D、A3A2A1'A0+A3A2+A3A1'A0'+A2A1A0'
举一反三
- 单元体的应力状态如图示,其主应力为( )[img=80x70]180347ed27c26a1.png[/img] A: σ1=σ2>0,σ3=0 B: σ1=0,σ2=σ3<0 C: σ1>0, σ2=0, σ3<0,∣σ1∣=∣σ3∣ D: σ1>0, σ2=0, σ3<0,∣σ1∣>∣σ3∣
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- 【单选题】如图示代码,下面哪个是正确的输出结果 A. 0 1 2 3 4 5 B. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 C. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 D. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5
- 下列向量组中,( )是线性无关向量组。 A: (1, 1, 0), (0, 2, 0), (0, 0, 3) B: (1, 2), (3, 0), (5, 1) C: (2, 6, 0), (3, 9, 0), (0, 0, 2) D: (1, 2), (--3, 0), (5, 1)
- 图示应力状态,其主应力关系必有() A: σ1≥σ2,σ3=0 B: σ3≤σ2≤0,σ1>0 C: σ1≥σ2≥σ3≥0 D: σ3≤σ2,σ1>0