某调频波表达式为[tex=17.071x1.571]wjLeR22suhzQA3pG7kvb+RM0ohKn4UJBtks0YO3TyJUhXH8twbO/wvu+4ZOGj1JCwHC9SLVZvCJB0rqyHvTgXzsWIVdwPsiMW1fbl8xGK3Fx4/mvXyKOef8LAbMaMCcqHePVX2Ca7Y+biSnjg/8HEQ==[/tex],若调频灵敏度[tex=6.143x1.357]CVkKfW36mvDKuW0qiamNHs+FzalyI9XJoNMHiTPahTk=[/tex], 则调制信号[tex=2.071x1.357]Sf/7wDdu/UO/yWY7RT2jsw==[/tex]为 [input=type:blank,size:6][/input]
举一反三
- 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']
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- 某调频波为[tex=17.643x1.571]6cQrij2d+Zjopt+Fp5JTUpLhk+989A10A+NYNmXeZSPxtr6ECdmo9HM3LU2Wg5ATtx90pbyXwnnJbSqA2AupvBBIqvFIxl7S46s28DO05hYPInc+BWxmIGpNVE2MpAnu[/tex] ,试确定 : 调制信号[tex=2.071x1.357]Sf/7wDdu/UO/yWY7RT2jsw==[/tex]的形式。
- 【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背