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【简答题】
Alex was a giraffe who lived in a zoo with his mum, dad and other giraffe friends. As Alex grew, he 1 his neck was much shorter than the others’. He began to get 2 . But his mother told him that he was special. She said it did not matter how short or long his neck was. Alex tried not to think about his short 3 . But as his friends grew taller and taller, his neck 4 short. Sometimes the other giraffes 5 him, but his parents told him not to worry. They said that he should be happy with himself the way he was. He tried, but he could not even play in some girafre sports. He was just too 6 . One day, one of the zoo workers came and took Alex away. Alex was frightened. Would he have to leave the zoo just 7 he didn’t have a long neck? The zoo worker calmed Alex down and gave him some food. He felt better. Then he led Alex into another area of the zoo. There was a small 8 between the two areas. Alex was the only giraffe that could fit through it. Soon Alex’s parents came to see him. “I told you that you were special,” his mother said. “The zoo has made a place just for 9 because so many people want to see how special you are!” She was right. Visitors pointed to him and screamed 10 . They looked happy to see something so special at the zoo.
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【简答题】补充题 74161 设计-4 . 用 74LS161 实现模6计数器, 要求使用 C 进位置数法选择正确的连线方式 ,画出状态转换图( 假如 A 状态是 0000 ,则在第一空填写 0000 ,请依次按顺序填入 )。
【单选题】下列不属于数据库应用系统的是( )。
A.
Windows 2003 server版操作系统
B.
学生学籍管理系统
C.
高考网上报名管理系统
D.
卡拉OK点播系统
【判断题】摆动导杆机构不存在急回特性
A.
正确
B.
错误
【单选题】下列不属于数据库应用系统的是______。
A.
WindowsXP操作系统
B.
学生学籍管理信息系统
C.
多媒体视频节目点播系统
D.
校本课程管理系统
【单选题】厚面料或者缝制时增加多层辅料,尤其衣服内部添加填充物,围度内径有没有变化?
A.
变小
B.
变大
C.
不变
D.
不清楚
【单选题】下列不属于数据库应用系统的是()
A.
Microsoft Windows XP 操作系统
B.
学生学籍管理信息系统
C.
多媒体视频节目点播系统
D.
学校课程管理系统
【判断题】摆动导杆机构不存在急回特性
A.
正确
B.
错误
【单选题】数据库应用系统的实施分为四个步骤。下列不属于数据库应用系统实施工作的是
A.
系统监控
B.
试运行
C.
数据装载
D.
建立数据库结构
【多选题】对两片74LS160,采用级联法、清零法和置数法实现模24计数器,方法为:
A.
两片74LS160同步级联组成模100计数器,再采用清零法构成模24计数器。
B.
两片74LS160同步级联组成模100计数器,再采用置数法构成模24计数器。
C.
利用清零法使单片74LS160构成模3计数器和模8计数器,再将模3计数器和模8计数器同步或异步级联即可。
D.
利用置数法使单片74LS160构成模4计数器和模6计数器,再将模4计数器和模6计数器同步或异步级联即可。
【单选题】厚面料或者缝制时增加多层辅料,尤其衣服内部添加填充物,围度内径有没有变化?A、变小 B、变大 C、不变 D、不清楚
A.
变小
B.
变大
C.
不变
D.
不清楚
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