测得电路中三极管 3 个电极 U B 、 U C 、 U E 的电位分别为下列各组数值:试确定哪几组数据对应的三极管处在放大状态 ? (1)0.7V , 6V, 0V (2)0.7V, 0.6V, 0V (3)1.7V , 6V, 1.0V (4)4.8V, 2.3V, 5.0V (5)-0.2V ,-3V,0V (6)-0.2V,-0.1V,0V
【判断题】In 1864, Lincoln won re-election due to his great contribution to the American civil war, and his Second Inaugural Address is now inscribed on one wall of the Lincoln Memorial in Washington, D. C.