皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
( 32 ) “ 教师表 ” 中有 “ 职工号 ” 、 “ 姓名 ” 和 “ 工龄 ” 字段 , 其中 “ 职工号 ”为主关键字 , 建立 “ 教师表 ” 的 SQL 命令是
A.
) CREATE TABLE 教师表(职工号 C(10) PRIMARY, 姓名 C(20), 工龄 I )
B.
) CREATE TABLE 教师表(职工号 C(10) FOREIGN, 姓名 C(20), 工龄 I )
C.
) CREATE TABLE 教师表(职工号 C(10) FOREIGN KEY, 姓名 C(20), 工龄 I )
E.
) CREATE TABLE 教师表(职工号 C(10) PRIMARY KEY, 姓名 C(20), 工龄 I )
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】构件和零件不同,构件是运动单元体,零件是( )单元体。
【单选题】听力原文: The WHO has confirmed that at least three people have died of bird flu in Vietnam, the same virus that first emerged in Hong Kong in 1997 and killed six people. Hundreds of thousands of chickens...
A.
At least three.
B.
Six.
C.
Thirteen.
D.
Fifteen.
【简答题】构件与零件不同,构件是()单元,零件是制造单元。
【简答题】构件是 单元;零件是 单元。
【简答题】构件是 单元,零件是 单元。
【简答题】The position of women in Vietnam has improved.
【单选题】听力原文: Vietnam's prime minister has announced his plans to visit the United States next month. He'll be the first Vietnamese leader to travel to the US since the end of the Vietnam War. Prime Minister ...
A.
In June.
B.
Last month.
C.
Next month.
D.
On his official trip to Australia.
【简答题】A.Television has been very effective in spreading news. B.Vietnam War was the first live broadcast of TV. C.Television can even change the way a government acts. D.Television did more to end the Vietn...
【单选题】Where has the highest rates of newborn deaths in the world?
A.
South Asia.
B.
Vietnam.
C.
Africa.
D.
South America.
【简答题】零件是 单元,构件是 单元。
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题