11.L[af(t)+bg(t)]=aL[f(t)]+bL[g(t)]
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- What will be the output of the following Python code? [br][/br]['f', 't'][bool('spam')] A: t B: f C: No output D: Erro
- Lớp Lan bắt đầu học từ tám giờ.[音频]
- 设A=ξηT，ξ=[1，-2，1]T，η[2，1，1]T，则(E+A)n=______．
- The 3rd homeworkListen to the following, spell the words in English and translate into Chinese._________________ [ʃeip]• _________________['traiæŋɡl]• ____________[raund]• _______________ ['əuvl]• _______________ [hɑ:t]• _______________ [stɑ:(r)]• _______________ [riŋ]• _______________ [ˈrektæŋɡl]• __________[skweə(r)]• _______________ ['daiəmənd]• _______________ [kju:b]• _______________ [kəʊn]_______________ ['kʌlə(r)]• _______________ [(h)wait] _______________ [blæk]• _______________ ['jeləu] _______________ [ɡri:n]• _______________ [red] _______________ ['silvə(r)]• _______________ ['ɡəuldən] _______________ [piŋk]• _______________ [braun] _______________ [blu:]• _______________ ['pə:pl] _______________ [ɡrei]• _______________ ['aivəri]_______________ [məˈtiəriəl]• _______________ ['leðə(r)] _______________ [klɔθ]• _______________ ['plæstik] _______________ ['rʌbə(r)]• _______________ [ˈmetl] _______________ [wud]_______________ ['tekstʃə(r)]• _______________ [sɔft]• _______________ [hɑ:d]• _______________ ['tendə(r)] _______________ [rʌf]• _______________ [smu:ð] _______________ ['stiki]_______________ [weit ənd ˈvɔlju:m]• _______________ ['sentiˌmi:tə] =(cm)• _______________ ['miliˌmi:tə] =mm• _______________ ['kiləˌmi:tə]=km• _______________ [intʃ] (1 _____ =25.4mm)• _______________ [mail] (1_____=1.609km)• _______________ [ɡræm]=g• _______________ [ˈkiləgræm] =kg.• _______________[paund] (1______=0.4536kg)• _______________ [tʌn]（1______ =1000kg）
- 已知系统的零输入响应yzi(t)=[e^(-t)+e^(-2t)]ε(t);零状态响应yzs(t)=[4e^(-t)+5e^(-2t)+10e^(-5t)]ε(t)。全响应y(t)=[(空1)e^(-t)+(空1)e^(-2t)+(空1)e^(-5t)]ε(t);自由响应yh(t)=[(空2)e^(-t)+(空2)e^(-2t)+(空2)e^(-5t)]ε(t);强迫响应yp(t)=[(空3)e^(-t)+(空3)e^(-2t)+(空3)e^(-5t)]ε(t);暂态响应yT(t)=[(空4)e^(-t)+(空4)e^(-2t)+(空4)e^(-5t)]ε(t);稳态响应ys(t)=[(空5)e^(-t)+(空5)e^(-2t)+(空5)]ε(t);