微博粉丝主要包括()。 A.僵丝 B.钢丝 C.弱丝 D.以上都是

题型:单项选择题

问题:

微博粉丝主要包括()。

A.僵丝

B.钢丝

C.弱丝

D.以上都是

考点:计算机网络信息安全与管理计算机网络信息安全与管理题库
题型:单项选择题

豌豆的高矮性状的遗传由其一对基因决定,其中决定高的基因记为D,决定矮的基因记为d,则杂交所得第一子代的一对基因为Dd,若第二子代的D,d的基因遗传是等可能的(只要有基因D则其就是高茎,只有两个基因全是d时,才显示矮茎),则第二子代为高茎的概率为______.

题型:单项选择题

代议制度在当代的作用是什么?

题型:单项选择题

相对于数据库系统,文件系统的主要缺陷有数据关联差、数据不一致性和

A.可重用性差

B.安全性差

C.非持久性

D.冗余性

题型:单项选择题

男性,23岁,右足被铁锈钉扎伤20d,10d前开始出现牙关紧闭,苦笑面容,角弓反张,但神志清楚,3d前开始出现高热39.5℃,考虑患者并发了()

A.脓毒症

B.破伤风

C.腹膜炎

D.胸膜炎

E.肺结核

题型:单项选择题

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’s address book, previous emails, web pages (8) .

A. attachment B. packet C. datagram D. message

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 passwords and give the (10) access to your network.

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