电路如图所示，二极管为同一型号的理想元件，电阻R=4k，电位uA=1V，uB=3V，则电位uF等于（）。
A.1V
B.3V
C.12V
参考答案：A
Would you like to_______ with us to the film tonight?
A．come along
B．come off
C．come across
D．come through
________ is a celebration of Jesus Christ (耶稣) coming to life (复活) [ ]
A. Halloween
B. Christmas
C. Easter
D. Thanksgiving Day
