A:If
B:Unle
C:Though
D:Since
所谓智力成果,主要是指依靠人类 劳动所创造的劳动成果。( )
图中电感线圈L的直流电阻为RL,小灯泡的电阻为R,小量程电流表G1、G2的内阻不计.当开关S闭合且稳定后,电流表G1、G2的指针均偏向右侧(电流表的零刻度在表盘的中央),则当开关S断开时,下列说法中正确的是( )
A: You look very nice in your new dress today.B: Oh, really? I it when it was on sale.