用于灾难恢复的通信网络包括生产中心和灾难备份中心间的备份网络和最终用户访问灾难备份中

题型:单项选择题

问题:

用于灾难恢复的通信网络包括生产中心和灾难备份中心间的备份网络和最终用户访问灾难备份中心的网络,通信线路应至少有()种以上不同的物理线路

A.一

B.二

C.三

D.四

考点:信息安全知识竞赛信息安全知识竞赛题库
题型:单项选择题

短文综合填空(本大题满分11分,每空1分)

Most people may not think that there are any problems with watermelons, but some Japanese sellers do. There is often wasted s_______小题1:when they store watermelons, because round watermelons do not sit nicely on shelves. So some c_______小题2:farmers have solved the watermelon problem. They make their watermelons grow in square glass boxes so the watermelons become square. The only problem now is the p_______小题3:. The square watermelons cost about 80 dollars each.

Many people know the s_______小题4:“Roses are red, violets(紫罗兰) are blue, sugar is sweet and so are you”. Well, today the poem needs to c_______小题5:“Roses are red” to “Roses are red, roses are blue”! Australian scientists discovered that when they put a chemical from a blue f_______小题6:into a rose, they can create a nearly 100% blue rose. Some of science’s inventions are beautiful, not just u_______小题7:!

For many years Chinese scientists have been w_______小题8:on developing new kinds of stronger rice and now they have produced a new kind, called super rice. Super rice not only can protect i_______小题9: against insects(昆虫) and diseases(病害), but it also produces more than any other kind of rice. Today farmers can grow almost one and a half times more rice than they could grow in the p_______小题10:.

Doctors might be able to use vegetables to fight cancer now. US scientists have discovered a w_______小题11:to put a chemical into tomato plants while they are growing. When cancer patients eat the tomatoes, the tomatoes will fight the cancer in their bodies.

题型:单项选择题

根据FIDIC施工合同条件,付给指定分包商的款项来源就是()。

A、暂定金额

B、项目管理费

C、零星用工费

D、总承包服务费

题型:单项选择题

泰勒(R.W.Tyler)课程理论的基本观点与泰勒原理是什么?

题型:单项选择题

单层厂房中杯口顶每边应比柱每边大()。

A.70mm

B.75mm

C.80mm

D.85mm

题型:单项选择题

下列情况中,破坏了数据的保密性的攻击是()。

A、假冒他人地址发送数据

B、不承认做过信息的递交行为

C、数据在传输中途被篡改

D、数据在传输中途被窃听

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