题型：判断题 从方框中选择合适的选项，补全对话。A: Have you finished your homework? B: 1 Exercise Three is very difficult. A: Don't worry. I'll help you. B: 2 But I think I can do it myself. Could you lend me your English-Chinese dictionary? A: 3 Here you are. B: Thanks a lot. Is Miss Gao in the office? A: Oh, no. She's out at the moment. B: Where is she? Do you know? 4 A:I think she's at the library. She told me she wanted to borrow some books.B: 5 A .Of course. B.Then I'll have to wait foe her. C.Not yet. D.It's very kind of you. E.I have some questions to ask her.1. 2. 3. 4. 5. 查看答案
题型：判断题 在相距r=10cm的A、B两点各放电荷qA=-10-6C，qB=+2×10-6C，且已知，ε0为介电常数，则两电荷之间所产生的作用力为（）。A．1.8NB．0.9NC．0.6ND．3.6N 查看答案
题型：判断题 对下属的工作进行现场监督可以_________。A.使上级有机会当面解释工作的要领和技巧B.纠正下属错误的作业方法与过程C.保证计划的执行和计划目标的实现D.避免已经产生的经营问题对企业不利影响的扩散 查看答案