She has set a new record, that is, the sales of her latest book ________ 50 million.

email地址的格式是：用户名@域名，变量 @dz中存放的是一个有效的email地址，提取其中的用户名并输出，完善执行下列任务的程序： ___________ @dz varchar(50),@userstr varchar(50),@i tinyint, @n tinyint set @dz='uxyz_123@136.com' set @n=LEN(@dz) set _________ while ____________ begin if SUBSTRING(@dz,@i,1)='@' _________ set @i=@i+1 _______ set @userstr= LEFT(@dz,@i-1) print 'email:'+ @dz+char(13)+'其中的用户名：' + @userstr

法国设计界怪才菲利普斯塔克为Alessi设计的产品有（ ） A: set50型挂勺 B: 鸟鸣式水壶 C: 人脸苍蝇拍 D: 静脉注射背包

检索职工表中年龄大于50的职工姓名，正确的命令是( )。 A: SELECT姓名wHERE年龄>50 B: SELECT姓名FROM职工FOR年龄>50 C: SELECT姓名FROM职工SET年龄>50 D: SELECT姓名FROM职工wHERE年龄>50

把零件号='P2'的零件的重量增加50，颜色改为'黄色'，SQL语句为—— A: UPDATE P SET WEIGHT=WEIGHT+50，COLOR='黄色' WHERE PNO='P2' B: INSERT INTO P(PNO,WEIGHT,COLOR) VALUES ('P2',50,'黄色') C: DELETE FROM P WHERE WEIGHT=50，COLOR='黄色'， PNO='P2' D: UPDATE P SET WEIGHT=WEIGHT+50，COLOR=黄色 WHERE PNO=P2

The rain looked as though it had ______for the night. A: set off B: set in C: set out D: set up

The sun ______ in the west. A: sets B: will set C: set D: is going to set

A new school has been _____there. A: set out B: set off C: set up D: set down

The government has _____a committee to inquire into the problem. A: set aside B: set out C: set up D: set about

If the CIF price of a product is USD100/set, freight charge USD10/set, insurance premium USD 10/set, commission rate 2%, the commission payment based on CIF price should be ( ) A: USD1.60/set B: USD1.63/set C: USD2.00/set D: USD2.04/set