题目

_______, or he’ll be more angry. A. To tell you the truth                              B. Telling him the truth C. Told the truth                                         D. Tell him the truth 答案：D 解析: or为连词，意为“否则”，连接两个并列的句子，前面应用祈使句。（2009?南汇区一模）如图（a）所示电路，R1=10欧．电键S断开时，电压表V的示数如图（b）所示；S闭合时，V的示数如图（c）所示．则电源电压为66伏，电阻R2=55欧．