火灾对建筑结构稳定性的影响有()A、热能的影响 B、建筑构件燃烧的影响 C、轰燃的影

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问题:

火灾对建筑结构稳定性的影响有()

A、热能的影响

B、建筑构件燃烧的影响

C、轰燃的影响

D、爆炸的影响

考点:公安消防岗位资格考试建筑耐火性能与建筑消防设施建筑耐火性能与建筑消防设施题库
题型:多项选择题

暖锋过境期间的天气一般表现为

A.锋前气压急剧升高,常出现雷暴天气

B.锋后空气湿度增加,常形成大范围降水

C.锋前水汽凝结,常形成雨、雾天气

D.锋后气温降低,常出现晴朗天气

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随着人们对信息需求的日益增长,许多国家都在大力开发可视图文信息系统。这种系统把用户终端(计算机和电话机)通过现有的公用电信网与图文信息中心计算机的数据库连接起来,进行数据通信,向公众开放信息服务,使信息资源在最大范围内实现共享,这个系统亦称为可视数据系统。 用户在家中只要通过操纵终端设备,就可以方便地向图文信息中心检索所需要的各种可视图文信息。各个用户可在电视机屏幕前分别与图文信息中心的计算机“对活”,而不只是被动地接收信息。这种可以进行人机对话的信息系统又称为交互(交互就是有问题有回答)可视信息系统。它是信息社会中一种比较理想的通信手段。这种可视信息系统自从1979年问世以来,至今已普及到几十个国家和地区,我国也已开通了可视图文通信业务。 在可视图文系统中,用户与电视节目中心数据库或图像库直接通信,成为声音、图像综合以及娱乐、教育、信息一体化的通信手段。它也是实现办公自动化和家庭自动化的重要工具。 交互电视信息系统使有线电视可供选择的频道增加到一二百个,而且各家庭(个人)同发射台可以进行双向通信联络,用户不仅可以点播节目,还可以参与电视节目的制作,可视图文系统已经使人们的生活发生一系列的改变。它给教学活动、生产管理等带来极大的方便。 可视图文系统最有效的领域要算是购物和预约订货了。顾客不出家门就可通过可视图文终端进行购物和款项的支付结算。

分析有误的一项是()。

A.交互可视信息系统既可接收信息,又可输出信息

B.可视图文信息系统在购物和预约订货中利用最多

C.通过可视图文信息系统,可以实现信息资源共享

D.可视图文信息系统是声音、图像综合以及娱乐、教育、信息一体化的通信手段

题型:多项选择题



If you find you spend more than you make, there are only two things to do: decrease your spending or (1) . It’s often easiest to decrease expenditures, because your expenses tend to be more (2) . There are as many ways to (3) as there are people looking to save it. For example, you may pool your resources with friends, or (4) only during sales, or even live more simply. But (5) that saving money should not necessarily be an end in itself. Don’t (6) of ways to save a dime, and don’t get upset about situations where (7) to spend money. The goal is to bring your budget into balance, not to become a tightwad who keeps (8) of every penny and feels that spending money is a (9) . It is important to remember that budgets may be (10) not only by decreasing expenditures, but also by increasing income. (11) to increase income is to get a (12) if you don’t already have one.
Many students work during college. Although working adds to the (13) you will face, it does not mean that your grades will necessarily suffer. In fact, many students who work (14) than those who don’t work, because those with jobs need to be (15) . Considering part-time work is often a better (16) for dealing with budget shortfalls, than taking out a loan. Because student loans are (17) , it’s easy to use them as a crutch. Loans can be of help (18) or if you couldn’t afford to attend a college without them. If you do (19) , remind yourself: one day soon you’ll have to (20) with interest.

题型:多项选择题

环磷酰胺致畸作用最强的时间是

A.1a.m.

B.3a.m.

C.7a.m.

D.1p.m.

E.7p.m.

题型:多项选择题

根据不同情况,电焊条有三种分类方法。

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