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患儿女，5岁，因“不规则发热2个月，头痛、呕吐2周，眩晕和复视1周”来诊。外院经多种抗生素治疗效果不佳。查体：颈强直，克尼格征（＋），布鲁津斯基征（＋）。

为明确诊断应紧急检查的项目包括 ()

A.血常规

B.脑脊液

C.血细菌培养

D.腹部B型超声

E.颅脑CT

F.脑电图

答案

参考答案：A, B, C

单项选择题

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

Melissa and LoveLetter made use of the trust that exists between friends or colleagues.Imagine receiving an （） from a friend who asks you to open it.

A．attachment

B．packet

C．datagram

D．message
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单项选择题

Most antipsychotic medications exert which of the following effects on the central nervous system (CNS)

A．Stimulate the CNS by blocking postsynaptic dopamine, norepinephrine, and serotonin receptors.

B．Sedate the CNS by stimulating serotonin at the synaptic cleft.

C．Depress the CNS by blocking the postsynaptic transmission of dopamine, serotonin, and norepinephrine.

D．Depress the CNS by stimulating the release of acetylcholine.
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