已知天空中两颗星对一望远镜的角距离为[tex=6.286x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex] 设它们发出光的波长为[tex=6.286x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex] 望远镜的口径至少要多大才能分辨出这两颗星.
已知天空中两颗星对一望远镜的角距离为[tex=6.286x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex] 设它们发出光的波长为[tex=6.286x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex] 望远镜的口径至少要多大才能分辨出这两颗星.
已知天空中两颗星相对于一望远镜的角距离为 [tex=6.5x1.357]fUVyxRjh1/t0I/sZGJZ/DUAtIOXxyvVE0pmswXNNgpo=[/tex], 由它们发出的光波波长 [tex=4.357x1.0]Z8qBj9DKY6GRcqaL4GS4jNq4kgiiRk7JoGZkv4xDXXs=[/tex]. 望远镜物镜的口径至少要多大, 才能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为 [tex=6.5x1.357]fUVyxRjh1/t0I/sZGJZ/DUAtIOXxyvVE0pmswXNNgpo=[/tex], 由它们发出的光波波长 [tex=4.357x1.0]Z8qBj9DKY6GRcqaL4GS4jNq4kgiiRk7JoGZkv4xDXXs=[/tex]. 望远镜物镜的口径至少要多大, 才能分辨出这两颗星?
已知天空中两颗星相对于望远镜的角宽度为 [tex=6.5x1.357]fUVyxRjh1/t0I/sZGJZ/DUAtIOXxyvVE0pmswXNNgpo=[/tex], 它们发出的光波波长[tex=4.357x1.0]Z8qBj9DKY6GRcqaL4GS4jNq4kgiiRk7JoGZkv4xDXXs=[/tex] 。望远镜物镜的口径至少要多大, 才 能分辨出这两颗星?
已知天空中两颗星相对于望远镜的角宽度为 [tex=6.5x1.357]fUVyxRjh1/t0I/sZGJZ/DUAtIOXxyvVE0pmswXNNgpo=[/tex], 它们发出的光波波长[tex=4.357x1.0]Z8qBj9DKY6GRcqaL4GS4jNq4kgiiRk7JoGZkv4xDXXs=[/tex] 。望远镜物镜的口径至少要多大, 才 能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为[tex=6.714x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex]两星的波长同为[tex=5.143x1.429]wVGvBL3wmo/qXq5NSxeCj0pODpC9c8R3QxheZApOxMc=[/tex]问要分辨出这两颗星,望远镜的口径至少要多大?[br][/br]
已知天空中两颗星相对于一望远镜的角距离为[tex=6.714x1.429]fUVyxRjh1/t0I/sZGJZ/DU2Kl9wJ7lRiywCWo4SeLy0=[/tex]两星的波长同为[tex=5.143x1.429]wVGvBL3wmo/qXq5NSxeCj0pODpC9c8R3QxheZApOxMc=[/tex]问要分辨出这两颗星,望远镜的口径至少要多大?[br][/br]
已知天空中两颗星相对于一望远镜的角距离为[tex=6.429x1.357]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHB40Z+0W+D8TE1r6Zqva3pd[/tex], 它们都发出波长为[tex=3.0x1.0]08ljDBmtLeF2csoLjkuaVQ==[/tex]的光,试问望远镜的口径至少要多大,才能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为[tex=6.429x1.357]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHB40Z+0W+D8TE1r6Zqva3pd[/tex], 它们都发出波长为[tex=3.0x1.0]08ljDBmtLeF2csoLjkuaVQ==[/tex]的光,试问望远镜的口径至少要多大,才能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为 [tex=6.214x1.429]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHDOhbEvFFvXxba3+wDUAAVY[/tex] 它们都发出波长为[tex=3.357x1.5]tag29OtxPu63nNbHDN1cKtqUmDGudL1Fp2c6JbPUlBhF5Ttgevg5gxAYNslMG4hg[/tex]的光, 试问望远镜的口径至少要多大, 才能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为 [tex=6.214x1.429]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHDOhbEvFFvXxba3+wDUAAVY[/tex] 它们都发出波长为[tex=3.357x1.5]tag29OtxPu63nNbHDN1cKtqUmDGudL1Fp2c6JbPUlBhF5Ttgevg5gxAYNslMG4hg[/tex]的光, 试问望远镜的口径至少要多大, 才能分辨出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为[tex=6.429x1.357]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHB40Z+0W+D8TE1r6Zqva3pd[/tex] , 由它们发出的光波波长[tex=5.429x1.143]DBqP1ReXrhxj2jM/rsWcDfXchqW0AZXbEhodHr/lVBHoyA9AO2YgH0azzH/S3e9g[/tex]望远镜物镜的口径至少要多大,才能分辦出这两颗星?
已知天空中两颗星相对于一望远镜的角距离为[tex=6.429x1.357]fUVyxRjh1/t0I/sZGJZ/DQmQj3LgqZFG1uDI81kerHB40Z+0W+D8TE1r6Zqva3pd[/tex] , 由它们发出的光波波长[tex=5.429x1.143]DBqP1ReXrhxj2jM/rsWcDfXchqW0AZXbEhodHr/lVBHoyA9AO2YgH0azzH/S3e9g[/tex]望远镜物镜的口径至少要多大,才能分辦出这两颗星?
for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是:__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常
for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是:__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常
【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1
【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1
for i in range(1,11): for j in range(1,11): b.cell(row=i,column=j).value=1 #b是一个工作表对象for i in range(1,11): for j in range(1,11): print(b.cell(row=i,column=j).value,end=" ") print()上面程序代码运行的结果是()。 A: 1 B: 1 1 1 1 1 1 1 1 1 1 C: 1111111111 D: 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1
for i in range(1,11): for j in range(1,11): b.cell(row=i,column=j).value=1 #b是一个工作表对象for i in range(1,11): for j in range(1,11): print(b.cell(row=i,column=j).value,end=" ") print()上面程序代码运行的结果是()。 A: 1 B: 1 1 1 1 1 1 1 1 1 1 C: 1111111111 D: 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1