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>> 国家开放大学 / 土木工程力学（本）
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佳题速递：
保洁服务机构设置物业管理企业或项目管理处一般下设保洁部，根据实际业务状况，管辖（）。 物业管理 “全高速－下线运行” 方案高速铁路运营管理 结合人民群众是历史创造者的原理，谈谈对“坚持以人民为中心”基本策略重要性的认识。马克思主义基本原理概论 69、网状拓扑结构的缺点是________。
A.中心结点的故障导致整个网络的瘫痪
B.对根结点的依赖性大
C.任意结点的故障或一条传输介质的故障能导致整个网络的故障
D.结构复杂计算机统考 关于TCP/IP协议的描述中，错误的是_____。 计算机应用基础 48、A characteristic of American culture that has become almost a tradition is to respect the self-made man - the man who has risen to the top through his own efforts, usually beginning by working with his hands. While the leader in business or industry or the college professor occupies a higher social position and commands greater respect in the community than the common laborer or even the skilled factory worker, he may take pains to point out that his father started life in America as a farmer or laborer of some sort.
This attitude toward manual (体力的) labor is now still seen in many aspects of American life. One is invited to dinner at a home that is not only comfortably but even luxuriously (豪华地) furnished and in which there is every evidence of the fact that the family has been able to afford foreign travel, expensive hobbies, and college education for the children; yet the hostess probably will cook the dinner herself, will serve it herself and will wash dishes afterward; furthermore, the dinner will not consist merely of something quickly and easily assembled from contents of various cans and a cake or a pie bought at the nearby bakery. On the contrary, the hostess usually takes pride in careful preparation of special dishes. A professional may talk about washing the car, digging in his flowerbeds, painting the house. His wife may even help with these things, just as he often helps her with the dishwashing. The son who is away at college may wait on table and wash dishes for his living, or during the summer he may work with a construction gang on a highway in order to pay for his education.统考英语阅读理解
时，杆件的B端为定向支座。