PC机所使用的标准键盘向主机发送的代码是( )。A．扫描码 B．ASCII符 C． 发布时间：2017-12-18 12:19 │ 来源：www.tikuol.com 题型：单项选择题 问题： PC机所使用的标准键盘向主机发送的代码是( )。A．扫描码B．ASCII符C．BCD码D．格雷码
题型：单项选择题 选用方框中所给词填空outside, food, for, like, no, want, How's, wear, rules, T-shirts, eat, study, classes, awfulJerry: Hey,Ben! 1 your new school? Ben: It's 2 .I don't like their rules. Jerry: Yeah? What 3 ?Do you have to 4 a uniform? Ben: No,we don't. But we can't wear 5 . Jerry: Oh. How is the 6 ? Ben: Awful! And we have to 7 in the cafeteria. Jerry: Can you go home 8 lunch? Ben: No,we can't,and we can't eat 9 . Jerry:What do you have to 10 ? Ben: Math, science, history, geography, computer science...And we have to study English. It's OK,but I 11 to study French and Spanish,too. Jerry: And you can't? Ben: 12 ，I can't. Jerry: Do you have to go to physical education 13 ? Ben: Yes,I do,but I 14 physical education. 查看答案
题型：单项选择题 《电建安规》（变电所部分）5.2.1.4条规定：在220kV及以上电压等级运行区传递非绝缘的工具、非绝缘的材料应采取防止（）的措施。A.工具、材料折断B.绝缘损坏C.材料掉落伤人D.静电感应、电击 查看答案