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问题 单项选择题 A3/A4型题

患儿，女，10岁。右下后牙痛4天，夜间加重1天，牙龈红肿，无龋洞。

对患牙应做何种检查（）

A.叩诊

B.牙髓温度测试

C.探诊

D.X线检查

E.以上都应做

答案

参考答案：E

单项选择题

OSPF is a link-state routing protocol. It is designed to be run internal to a single (1) system. Each OSPF router maintains an identical(2) describing the autonomous system's topology. From this database, a routing table is calculated by constructing a shortest-path (3).OSPF recalculates routes quickly in the face of topological changes, utilizing aminimum of routing (4) traffic. OSPF provides support for equal-cost multipath. An area routing capability is provided, enabling.an additional level of routing protection and a reduction in routing protocol (5).

空白（2）处应选择（）

A.tree

B.table

C.database

D.record
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单项选择题

一个类的友元函数能够访问该类的( )。

A．私有成员

B．保护成员

C．公有成员

D．所有成员
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