急性肾盂肾炎最主要的诱因是A．消化道感染 B．劳累 C．呼吸道感染 D．尿路梗阻和尿

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (56) from a friend who asks you to open it. This is what happens with Melissa and several other similar Email (57) . Upon running, such worms usually proceed to send themselves out to Email addresses from the victim’s address book, previous Emails, Web pages (58)
As administrators seek to block dangerous Email attachments through the recognition of well-known (59) , 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 passwords and give the (60) access to your network.

A．memory

B．caches

C．ports

D．registers

某市邮电局主要从事报刊发行业务，同时兼营电信、邮政储蓄及代办保险业务。
2006年6月发生下列业务：
(1)为出版单位提供征订、投递报纸、杂志的劳务取得手续费收入600000元。
(2)设立非独立核算门市部销售报纸、杂志收入220000元。
(3)出售手机并收取通信服务费1150000元，其中含手机销售额23000元。
(4)办理邮政储蓄业务收入163000元。
(5)代办保险收入94000元。
根据所给资料，依据营业税的有关规定计算并回答下列问题：

该邮电局报刊发行业务应纳营业税为( )。

A．6600元
B．18000元
C．24600元
D．36600元

将文件夹下SMITH文件夹中的文件COUNTING.WRI移动到文件夹下OFFICE文件夹中，并改名为IDEND.BAK。

克汀病是由于体内缺乏（）引起的

治安行政赔偿的（）是治安行政赔偿制度的核心。