题型:名词解释 在右图所示的电路中,两个灵敏电流表和的零点都在刻度盘中央,当电流从“+”接线柱流入时,指针向右摆;电流从“-”接线柱流入时,指针向左摆.在电路接通后再断开的瞬间,下列说法中符合实际情况的是 ( )A.表指针向左摆,表指针向右摆B.表指针向右摆,表指针向左摆C.、表的指针都向左摆D.、表的指针都向右摆 查看答案
题型:名词解释 We looked at each other ___ surprise when we heard a bird singing " Happy birthday to you" . [ ]A. in B. to C. by D. at 查看答案