10个月男婴，低热，睡眠不安7天，时有呕吐咳嗽，家中无结核患者。查体：烦躁不安，前囟稍隆起，颈有抵抗，心肺无异常，肝脾轻度肿大。脑脊液：外观清亮，WBC250×10⁶／L，N30％，L70％，潘氏试验（+），氯化物94.6mmol／L，糖1.45mmol／L。OT试验（-）。最可能的诊断是（）

A.病毒性脑炎

B.化脓性脑膜炎

C.结核性脑膜炎

D.隐球菌性脑膜炎

E.中毒性脑病

Melissa and Love Letter 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.

（75）处填（）。

A．cracker

B．user

C．customer

D．client