下列选项中,关于自治系统的叙述不正确的是( )。 A.采用分层次划分区域的方法使交

题型:单项选择题

问题:

下列选项中,关于自治系统的叙述不正确的是( )。

A.采用分层次划分区域的方法使交换的信息的种类增多,同时也使OSPF协议更加简单
B.OSPF协议将一个自治系统再划分为若干个更小的范围,叫做区域
C.在一个区域内部的路由器只知道本区域的网络拓扑,而不知道其他区域的网络拓扑的情况
D.自治系统划分区域的好处是:将利用洪泛的交换链路状态信息的范围局限在每一个区域内,而不是整个自治系统

考点:计算机等级考试网络工程师计算机网络工程师
题型:单项选择题
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题型:单项选择题

科学的生育观认为()

A.人口越多越好

B.人口保持适度为宜

C.应遵循自然规律生育人口,不应进行人工干预

D.必须使人口规模保持在生活资料可能供养的范围内,对人口的抑制,一要靠人们自觉控制生育率,二要靠贫困、饥饿、瘟疫、战争等手段以增加死亡率而减少人口数量

E.生育越多越好

题型:单项选择题

“In only six days I lost seven pounds of weight.”

“Two full inches in the first three days!”

These are the kinds of statements used in magazine, newspaper, radio and television ads, promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs, slim the face, smooth wrinkles, or in some other way to beauty or desirability.

Often such products are nothing more than money-making things for their promoter. The re they produce are questionable, and some are dangerous to health.

To understand how these products can be legally promoted to the public, it is necessary? Understand something of the laws covering their regulation. If the product is a drug, FDA(Food Drug Administration)can require proof (证明)under the Food, Drug, and Cosmetic Act that safe and effective before it is put on the market . But if the product is a device, FDA. has no author to require premarketing proof of safety or effectiveness. If a product already on the marker danger to health, FDA. can request the producer or distributor to remove it from the a voluntarily, or it can take legal action ,including seizure (查封) of the product.

One notable case a few years ago involved an electrical device called the Relaxacisor, had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the ## through contact pads. FDA. took legal action against the distributor to stop the sale of the ## the grounds that it was dangerous to health and life.

Olwionsly, most of the devices on the maker never been the subject of court proceedings (法律诉讼),and new devices appear continually, Before buying, it is up to the consumer to the safety or effectiveness of such items.

小题1:It can be inferred that ads mentioned in the text are ______.

A.objective

B.costly

C.unreliable

D.illegal小题2:Which of the following is true according to the text?

A. The court is in charge of removing dangerous product.

B. New products are more likely to be questionable.

C. The production of a device must be approved by FDA.

D. The promoters usually just care about profits.

小题3:FDA. can ask for the proof of safety and effectiveness of a product ________.

A. if it is a drug

B. if it is a device

C. if its consumers make complaints

D. if its distributors challenge FDA’s authority

小题4:The Relaxacisor is mentioned as_______.

A.a product which was designed to produce electricity

B.a product whose distributor was involved in a legal case

C.a successful advertisement of a beauty product

D.an example of a quality beauty product小题5:The author intends to __________

A. make consumers aware of the promoters’ false promises

B. show the weakness of the law on product safety

C. give advice on how to keep young and beautiful

D. introduce the organization of FDA.

题型:单项选择题

个人所得税是对个人的( )征税。

A.所得

B.收入

C.消费

D.储蓄

题型:单项选择题

(五)某桥梁工程的施工项目经理部对投入施工现场的劳动力采用专业分工作业组合形式,在选择施工材料供应商时,采用对竞标供应商进行综合分析的方法选择了两家合格的材料供应商。在选择钻孔设备时考虑土质等因素后,选择了冲击钻机,水泥混凝土在运送时采用水泥混凝土搅拌运输车,这样可以保证混凝土不会产生离析现象,很好地保证了混凝土的浇筑质量。
问题

通常情况下,公路工程施工常采用的劳动力组合方式有哪几种

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