【单选题】下列关于列表和元组的说法中,错误的是哪一项?
C.
列表可以作为元组的元素,元组也可以作为列表的元素
【单选题】No fringes are seen in a single-slit diffraction pattern if:
A.
the screen is far away
B.
the wavelength is less than the slit width
C.
the wavelength is greater than the slit width
D.
the distance to the screen is greater than the slit width
【简答题】I slit a sheet. A sheet I slit. Upon the slitted sheet, I sit!
【多选题】某负载阻抗 Z=(2+j2)Ω ,与之相连接的电流源的电流为 i s = 14.14cos(100 t +30°)A ,则以下结论正确的是( ) 。
【单选题】下面哪一种情况最适合采用无线网络接口卡? ( )
D.
当计算机需要由移动用户使用但仍然要和网络联接时