A recent development is the local area
network (LAN). (21) its name implies, it (22)
a local area—possibly as small as a single room, typically an area
like an university campus or the premises of a particular business. Local area
networks were developed to (23) a need specific to
microcomputers—the sharing of expensive resources. Microcomputers are cheap,
(24) highcapacity disc stores, fast and/or good quality
printers, etc. are expensive. The object of the LAN is to allow (25)
microcomputers shared access to these expensive resources. Since the
microcomputers are (26) , it is a necessary feature of a LAN
that the method of connection to the network, and the network hardware
(27) , must also be cheap. A local area network links a number of computers and a number of sewers (28) provide c A. Whatever B. Whichever C. Wherever D. Whoever [单选题]在220V的电源上并联接入5只灯泡,功率分别为:两只40w,一只15w,一只25w,一只100w,这5只灯泡从电源取出的总电流为(____)A。
A.40 B.1 C.100 D.5 [填空题]人类社会发展的历史表明,对一个民族、一个国家来说,最持久,最深层次的力量是全社会共同认可的核心价值观。积极培育和践行社会主义核心价值观,有利于( )。
[单选题]《建筑设计防火规范》将易燃液体按照闪点分为( )三类。
A.甲、乙、丙 B.A B C C.一级、二级、三级 D.易燃、可燃、难燃 [简答题]论述运用马克思主义(恩格斯)国家起源理论评价非马克思主义关于国家起源的主要观点?
[单选题]()公差的公差带方向是根据项目的特征由基准决定的。
A.形状 B.尺寸 C.位置 D.未注 [单选题]货运列车脱轨,未构成一般B类以上事故的,为( )事故。
A.一般A类 B.一般B类 C.一般C类 D.一般D类 [单选题]空载长线是( )元件。
A.电容 B. 电感 C. 电阻 D. 电导 [单项选择]What Zwerling means by "liberal education" is education directed at________.
[填空题]采用液力机械传动的大型养路机械的区间运行有两种工况,即()运行工况和连挂运行工况。
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