A.+→
B.→+
C.+→
D.→+
答案:D
—Our women athletes achieved great success in the Vancouver Olympic Winter Games.
—Yes No one could perform _____, I think.
A.well
B.better
C.best
D.the best
测量一个信号强度小于2A正弦波信号电流具体数值,正确的仪表选择是()
A.直流电流表,量程是2A
B.交流电流表,量程是5A
C.交流电流表,量程是2A
D.以上全部