已知[tex=10.357x1.357]4WQ0Cy4+pwSf7BTU4wDloDj1z53SIwPkBoASoEh21HQnQ9ZZlrpuX5fEpDNjQ9hSHFkmmN26/paZLRu9pROZOw==[/tex],[tex=10.357x1.357]92P3OmvxmIBlJXPRAL4DyDPuZzxflwkrEAUlzFeI+EW0icGnkiU5pJjtniOWKnmg1gdOGI7gP+oqu0Xz+DOxJA==[/tex],则两者的相位差为[tex=1.429x1.071]YSqcTO1CWXerKNOHvWw/8g==[/tex],对不对?为什么?
举一反三
- [tex=20.786x1.357]4WQ0Cy4+pwSf7BTU4wDloDj1z53SIwPkBoASoEh21HQnQ9ZZlrpuX5fEpDNjQ9hS1kDT9SnCPwZuWZYuMvwMy4Rd6s3zjdPdcx7QwAfKWnOIvRMlBXckCakVCPmI6FNUsf2AfLCwE+MAk275eVpJmA==[/tex], 两者相位差为[tex=1.429x1.071]YSqcTO1CWXerKNOHvWw/8g==[/tex], 对不对?
- 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}
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- 【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]
- 同时掷2颗均匀骰子，X表示点数大于4出现的个数，则以下结果正确的是 A: X服从二项分布 B: P(X=0)=P(X=1) C: P(X=1)=4/9 D: P(X=0)=1/9 E: P(X=2)=4/9 F: P(X>;0)=1 G: P(X<;2)=5/9 H: P(X>;1)>;0.5