毛泽东同志最伟大的历史功绩是A．把马列主义的普遍原理同中国革命的实际结合起来，指出了中国夺取

“from”和“after”在海运提单和汇票上面的不同用法

(1)The word "from" when used to determine a period of shipment include the date mentioned．

Shipment date falls at 30 daysfrom15 April，it falls on ①______．

(2)The word "from" when used to determine maturity date exclude the date mentioned Maturity date falls at 30 daysfrom15 April, it falls on ②______.

(3)The word "after" when used to determine a period of shipment exclude the date mentioned.

Shipment date falls at 30 daysafter15 April, it falls on ③______.

(4)The word "after" when used to determine a maturity date exclude the date mentioned.

Maturity date falls at 30 daysafter15 April, it falls on ④______.

“from”和“after”在海运提单和汇票上面的不同用法

(1)The word "from" when used to determine a period of shipment include the date mentioned．

Shipment date falls at 30 daysfrom15 April，it falls on ①______．

(2)The word "from" when used to determine maturity date exclude the date mentioned Maturity date falls at 30 daysfrom15 April, it falls on ②______.

(3)The word "after" when used to determine a period of shipment exclude the date mentioned.

Shipment date falls at 30 daysafter15 April, it falls on ③______.

(4)The word "after" when used to determine a maturity date exclude the date mentioned.

Maturity date falls at 30 daysafter15 April, it falls on ④______.

在以下函数运算中，结果不同的是( )。

A．LEFT("Visual FoxPro",6)与SUBSTR("Visual FoxPro",1,6)

B．RIGHT(DTOC(DATE()),2)与SUBSTR(DTOC(DATE()),7,2)

C．TYPE("36-5^*4")与TYPE(36-5^*4)

D．假定A="this",B="is a string",A-B与A+B

A．1

B．4

C．7

D．10

A．Print Year(Date) + "年"

B．Print Year(Date) ; "年"

C．Print Year(Date) & "年"

D．Print CStr(Year(Date)) + "年"

向学生表ST中增加一个新列：出生日期(RQ)，其类型为日期型。实现该功能的正确的SQL语句是______。

A．APPEND TABLE RQ DATE ADD ST

B．APPEND TABLE RQ DATE ADD ST NOT NULL

C．ALTER TABLE ST ADD RQ DATE SMALLINT

D．ALTER TABLE ST ADD RQ DATE

对emp表增加雇员被雇佣时间come列，其数据类型为日期型，正确的语句是()。

A．ALTER TABLE emp ADD come Date

B．ADD TABLE emp come Date

C．ALTER TABLE emp come Date

D．ADD come Date TABLE emp

“把查询sc表和更新sc表的grade列的权限授予用户user”的正确SQL语句是（）。

A）GRANT SELECT sc，UP DATE sc．Grade TO user

B）GRANT SELECT,UP DATE (grade) ON TABLE sc TO user

C）GRANT SELECT,UP DATE ON TABLE sc．Grade TO user

D）GRANT SELECT ON TABLE sc，UP DATE ON TABLE sc(grade) TO user

A．A.INPUT(date，YYMMDD10.)

B．B.PUT(date，YYMMDD10)

C．C.INPUT(date，YYMMDD10.)

D．D.PUT(date，YYMMDD10)