一个机器人沿着某一方向走了1m,然后向左转45°,又走了1m,再向左转45°,…

题型:填空题

问题:

一个机器人沿着某一方向走了1m,然后向左转45°,又走了1m,再向左转45°,…,反复执行“走1m,向左转45°”这样的指令,当机器人第一次回到出发点时,其走了______m.

考点:多边形的内角和和外角和
题型:填空题

有关IL-2的叙述,下列哪项是错误的()

A.主要由B细胞产生的

B.它促进Tc细胞的增殖

C.它促进Th细胞的增殖

D.它能和活化的T细胞IL-2受体结合

E.它是T细胞生长因子

题型:填空题

Microsoft has a problem:It desperately wants the remaining Windows XP users to upgrade to a newer version of the operating system but a good many of them still haven’t started.The latest numbers from NetMarket show that Windows XP still accounts for around 29.5%of all desktops in use even though Microsoft is due to end support for the l3-Year-old platform on April 8th.ZDNet reports that Microsoft plans to force remaining XP users to start next week by sending them notices reminding them again that it will end XP support within a month.

However, as Computerworld reports,Microsoft may have a tough time convincing some Windows XP users to upgrade because it's trying to sell them on Windows 8,the newest operating system that has angered many longtime PC users by removing the traditional Start menu and by adding the interface(界面)a special feature.Computerworld writes that many Windows users expressed anger last month when Microsoft asked them to help switch as many people as they could from Windows XP to Windows 8 partly because Microsoft hasn’t offered any sort of discount for Windows XP users making the switch.

This is particularly tiresome, these users said,because switching from XP to Windows 8 won’t just require a software upgrade but will instead likely force them to buy new machines capable(能够)of running Microsoft’s new operating system.Some users were also annoyed that Microsoft only mentioned Windows 8 and not Windows 7 as upgrade possibilities.

In the end,it looks like when Microsoft ends support for Windows XP next month there will still be a large part of the desktop PC world using the platform.Hackers who have been saving up all their best new malware(恶意软件)for the day when Windows XP support ends are about to have a field day

小题1:What problem does Microsoft have now?

A.Windows XP is out of date and needs improvement.

B.Windows 8 runs worse than Windows XP.

C.No people like to upgrade their operating system.

D.Lots of users refuse to switch from XP to Windows 8.小题2:How will Microsoft remind users ofthe stop of XP support?

A.By sending them notices.

B.By sending them daily emails.

C.By adding the interface a special feature.

D.By removing the traditional Start menu.小题3:Which is probably one of the reasons why users dislike Window 8?

A.Microsoft hasn’t offered any discount for it.

B.They like Window 7 more than Window 8.

C.Microsoft refuses to offer them a new machine.

D.It’s impossible for them to use the new operating system.小题4:What does the underlined phrase “have a field day” probably mean in the last paragraph?

A.Show up without warning.

B.Make rapid progress.

C.Make full use of the opportunity.

D.Come to an end completely.小题5:What can be inferred from the text?

A.Windows XP will completely be out of use in a month.

B.Windows XP will still be in use for a period of time.

C.Windows 8 will have a longer history than Windows XP.

D.Windows 7 will easily be attacked by Hackers.

题型:填空题

甲与乙涉嫌组织卖淫罪被公安机关立案侦查,公安机关提请检察院批准逮捕,检察院在办理甲的批捕时,发现对乙也应当逮捕。检察院对乙应如何处理

A.检察院应当建议公安机关提请批准逮捕
B.如果公安机关说明不提请逮捕理由,但理由不能成立的,检察院可以申请上一级检察机关对乙直接做出逮捕决定,送达公安机关执行
C.检察院应当将案卷退回;建议公安机关重新对两人提请批准逮捕
D.本案不是检察院直接立案侦查的案件范围,检察院应当对甲批准逮捕,对乙不做出是否逮捕的决定

题型:填空题

数据是可以记录、通信,抽象的和能识别的(),是对()事物的性质、状态,以及相互关系等进行集中的物理符号或是这些物理符号的组合。

题型:填空题

区域雷达管制的最小间隔标准是:().

A.6千米

B.10千米

C.15千米

D.20千米

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