问答题
Fill in the blanks. To all who come to this(____) place: Welcome.(____) is your land. Here (____) relives fond memories of the (____) , and here(____) may savor the challenge and promise of the (____) A.happy B. youth C. Disneyland D. past E. future F. age
happy;Disneyland;age;past;youth;future
单项选择题 如图所示电路中，三只二极管参数相同。若A、B、C三端电压分别为2V、3V、4V，若二极管压降为0.7V，试分析各二极管工作情况，求端口D的电压值。 ( ) A.0.7VB.1.7VC.3.3VD.2.5V
单项选择题 Discrete element method cannot solve three - dimensional problems.（ ） A. 对 B. 错
单项选择题 InChina, friendship is like... A、a flower B、a concentric circle C、a piece of paper D、a bag
