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【多选题】
管理人员平时应及时更新数据库哪些信息?A.
各种客户交易信息 ； 客户反馈信息
B.
其他可靠信息渠道获得的实施资料
C.
对现有表格进行增补、更改和删除
D.
如果数据库表格经常被替换，需保留一份以前的文件记录
E.
根据数据库满足现实工作需要的程度及时进行相应调整和改进。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】设已有定义：float x；则以下对指针变量P进行定义且赋初值的语句中正确的是( )。
A.
float*p=1024；
B.
int*p=(float)x；
C.
float p=＆x；
D.
float*p=＆x；
【单选题】What happened to British industrialist James Louis?
A.
He was kidnapped eight months ago.
B.
He failed in his negotiations with the Africans.
C.
He was assassinated in Central Africa.
D.
He lost lots of money in his African business.
【单选题】Dave lost his job and was short of money, so ______his flat and move in with his brother.A．that h
A.
7. Dave lost his job and was short of money, so ______his flat and move in with his brother. A．that he did was to sell
B.
what he did sell
C.
what he did was sell
D.
what he did sold.
【单选题】设已有定义float x;,则以下对指针变量p进行定义其赋初值的语句中正确的是( )
A.
float *p=1024;
B.
float *p=&x;
C.
int *p=(int)x;
D.
float p=&x;
【单选题】设已有定义：float x；，则以下对指针变量p进行定义且赋初值的语句中正确的是
A.
float *p=1024；
B.
int *p=(float)x；
C.
float p=&x；
D.
float *p=&x；
【单选题】设已有定义 float x; ,则以下对指针变量 p 进行定义且赋初值的语句中正确的是 ( ) 。
A.
float *p=1024;
B.
int *p=(int)x;
C.
float p=&x;
D.
float *p=&x;
【简答题】Why did Andre Heidrich cut back online gaming? A．He had lost a lot of money. B．His family had intervened. C．He had offended his relatives. D．His career had been ruined.
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