【单选题】若某元件两端的电压u=5 sin(314-30°)V,电流 i= sin(314t-30°)A,则该元件是( )。
【判断题】企业所选择的目标市场应该是企业力所能及的
【单选题】在三结合教育中,占主导地位的教育是( )。
【单选题】若某元件两端的电压 u=5√ 2sin(314t-30°)V,电流i=√ 2sin(314t-30°)A,则该元件是 ( )。
【单选题】Instead of sailing east, Columbus believed he could sail to the Indies.
【单选题】Tony has many hobbies,_________dancing, singing, sailing and jogging. A. Instead of B. for example C.because of D. such as
【单选题】I can hardly _____ their sailing across the ocean in a small sailing ship. [ ]
【单选题】若某元件两端的电压u=5√2 sin(314t-45。)V,电流i=√2 sin(314t-45。)A,则该元件是( )。