题目内容

制作尿素合成塔高压筒体的材料一般选用()。

A. 压力容器用碳素钢板
B. 压力容器用高强度碳锰钢板
C. 不锈钢板
D. 铸件

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Your application must access data that is located on two SQL Server 2005 computers. One of these servers is named SQL1 and the other is SQL2. You have permissions to create a stored procedure on SQL1 to support your application. However,on SQL2 you only have permissions to select data. You write the stored procedure on SQL1. The stored procedure accesses SQL2 by using the OPENQUERY Transact-SQL statement. However,the query fails when executed.You need to troubleshoot the cause of the error. What should you do?()

A. Join the two servers by using the four-part syntax of server.database.schema.table.
B. Reference SQL2 by using an alias.
C. Add SQL2 as a remote server to SQL1.
D. Add SQL2 as a linked server to SQL1.

淘宝支付宝本部设在浙江杭州,如果接到自称是淘宝支付宝客服的手机电话,而电话显示地址在“福建龙岩”“广西”等地方,我们基本可以确定对方是骗子。

A. 正确
B. 错误

多孔导管(排管)的敷设应符合()规定。

A. 多孔导管(排管)安装时,应有倾向人孔井侧不小于0.5%的排水坡度,并在人孔井内设集水坑,以便集中排水;
B. 多孔导管(排管)顶部距地面不应小于0.7m,在人行道下面时不应小于0.5m;
C. 多孔导管(排管)沟底部应垫平夯实,并应铺设厚度不小于60mm的混凝土垫层。
D. 多孔导管(排管)应避开易燃及其它管道。

制冷系统的管路使用无缝钢管时,采用螺纹联接较为方便。

A. 正确
B. 错误

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