题目内容

慢性支气管炎的主要致病菌有()

A. 肺炎链球菌
B. 奈瑟球菌
C. 流感嗜血杆菌
D. 甲型链球菌
E. 金黄色葡萄球菌

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客户向营业机构申请在借记卡内开立活期储蓄存款账户时,开户的同时存入外币现钞,当日累计等值()美元以下(含)的,柜员可直接办理。

伯氏疏螺旋体培养的常用培养基是()

A. 柯索夫(Kortho培养基
B. 蛋白胨培养基
C. 血琼脂平板
D. BSK培养基
E. 肉汤培养基

能通过胎盘传播的螺旋体是()

A. 雅司螺旋体
B. 回归热螺旋体
C. 奋森螺旋体
D. 梅毒螺旋体
E. 伯氏疏螺旋体

For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白(3)处应选择()

A. source
B. route
C. destination
D. host

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