识图题3:这是什么结构https://p.ananas.chaoxing.com/star3/origin/c6be927f491ee20405c44f4e658f08c3
举一反三
- 识图题1:箭头指的是什么结构https://p.ananas.chaoxing.com/star3/origin/ef4d6c42dd92b1969ffb8afa2c06fbc3
- 错误1: 错误2: 错误3: 错误4:https://p.ananas.chaoxing.com/star3/origin/f3848a1490dc70b67502f23cb8a243a3.jpg
- 错误1: 错误2: 错误3: 错误4:https://p.ananas.chaoxing.com/star3/origin/da50b19fe94e35c6326124e9d69be679.jpg
- 已知信号f(t)如图所示,则其傅里叶变换为。https://p.ananas.chaoxing.com/star3/origin/ddb8ffc4b3d85599b2fe584dfc9896ed.png
- 已知函数f(x)满足:f(p+q)=f(p)f(q),f(1)=3,则f2(1)+f(2)f(1)+f2(2)+f(4)f(3)+f2(3)+f(6)f(5)+f2(4)+f(8)f(7)等于( )