男，13岁，先天性马蹄内翻足，X线片显示骨结构畸形，宜采用（）

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问题单项选择题

A.手法按摩矫正，石膏固定术

B.手法按摩矫正，支具固定术

C.软组织松解术

D.三关节融合术

E.足部穿针牵引矫正术

答案

参考答案：D

单项选择题

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（1）处应选择（）

A.connectionless

B.connection-oriented

C.datagram

D.telegram

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判断题

预激综合征合并心房颤动患者治疗可选用利多卡因和维拉帕米。（）

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