户口在甲市A区的刘力与户口在B区的张新于1999年5月结婚后，即随刘力居住在B区张新

若有定义：float x=1.5；int a=1,b=3,C=2；则正确的switch语句是【 】。

A．switch(x) {case 1.0：printf("*＼n")；case 2.0：prinff("**＼n")；}

B．switch((int)x)；{case 1：printf("*＼n")；case 2：printf("**＼n")；}

C．switch(a+b) {case 1：printf("*＼n")；case 2+1：prinff("**＼n")；}

D．switch(a+b) {case 1：printf("*＼n")； case c：printf("**＼n")；}

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (6) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (7) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’address book, previous emails, web pages (8) .
As administrators seek to block dangerous email attachments through the recognition of well-known (9) , virus writers use other extensions to circumvent such protection. Executable(.exe)files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.
Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwouds and give the (10) access to your network.

A．attachment

B．packet

C．datagram

D．message

在进行工程结构极限状态设计时，（）可根据需要进行正常使用极限状态设计。（）

A.持久设计状况

B.短暂设计状况

C.偶然设计状况

D.地震设计状况

在制定组织职能计划哩，首要问题是明确市场营销在企业规划中的地位。使营销成为企业综合性职能的方法是（）。

A、强化营销部门的作用

B、使营销部门处于中心地位

C、由总经理（首席执行官）主管营销部门

D、让人事部门也进行营销

工艺设备费是指主要设备、辅助设备及零配件的购置费用，包括( )。

A．海运包装费用

B．设备安装费

C．管道系统费用

D．税金