PMC模式中，在项目设计阶段，代表或协助建设项目业主主要进行的工作有( )。A．编

我国劳动法中规定了劳动保护的特殊人群，下列属于劳动保护特殊人群的是( )。

A．残疾工的特殊保护

B．妇女工的特殊保护

C．童年工的特殊保护

D．矿山工的特殊保护

卫生资源中最重要的一种是（）

A、卫生费用

B、卫生信息

C、卫生人力

D、卫生设施与装备

E、卫生知识和技术

腹痛的性质不正确的是

A.烧灼样疼痛与腹膜弥漫性炎症有关 

B.隐痛或钝痛多因胃肠张力变化所致 

C.绞痛多因空腔脏器痉挛所致 

D.胀痛可能为实质脏器胞膜牵张所致 

E.刀割样疼痛多因脏器穿孔所致

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an （71） from a friend who asks you to open it. This is what happens with Melissa and several other similar email （72） . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages （73） .As administrators seek to block dangerous email attachments through the recognition of well-known （74） , 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 （75） access to your network.

A．virtual

B．virus

C．worms

D．bacteria