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问题 多项选择题

港口与航道工程中，高桩码头混凝土预制构件在预制场存放应符合下列规定（）。

A.存放场地宜平整

B.按两点或多点支垫

C.场地需浇筑混凝土地坪

D.不同规格的预制构件，宜分别存放

E.按出运次序存放

答案

参考答案：A, B, D

单项选择题

单层厂房围护墙应与柱子牢固拉接，此时沿墙高每隔（）设置钢筋2∮6，钢筋伸入墙体内部不少于（）。

A.500～620mm，300mm

B.500～620mm，500mm

C.1000～1200mm，300mm

D.1000～1200mm，500mm
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单项选择题

The Border Gateway Protocol (BGP) is an interautonomous system （71） protocol.The primary function of a BGP speaking system is to exchange network （72） information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that reachability information traverses. BGP-4 provides a new set of mechanisms for supporting （73）interdomain routing. These mechanisms include support for advertising an IP （74） and eliminate the concept of network class within BGP.BGP-4 also introduces mechanisms that allow aggregation of routes, including （75） of AS paths. These changes provide support for the proposed supernettting scheme.

71（）

A．connecting

B． resolving

C． routing

D．supernettting
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