根据下面的文字资料回答 63～70 题。

某建筑公司在南方某县城城区(地震烈度7度)施工六层砖混住宅楼，无地下室，地质条件好，肥槽及房心回填均从当地取土。施工所用砂浆现场拌制，砌筑用砖采用烧结普通砖，墙面普抹灰。

第 63 题 下列项目中，不得设置脚手眼的墙体或部位有（ ）。

A．120mm厚墙、料石清水墙和独立柱

B．过梁上与过梁成60。角的三角形方位及过梁净跨度l/3的高度范围内

C．砌体门窗洞口两侧200mm和转角处450mm范围内

D．宽度小于1.2m的窗间

E．梁或梁垫下及其左右500mm围内

[单选题]根据下面的文字资料回答 22～25 题。水源建筑公司在南方某县城城区(地震烈度7度)施工六层砖混住宅楼，无地下室，地质条较好，肥槽及房心回填均从当地取土。施工所用砂浆现场拌制，砌筑用砖采用烧结普通砖，墙面通抹灰。第22题：基础墙防潮层宜用1：2水泥砂浆加适量防水剂铺设，其厚度宜为（ ）mm。A．10B．15C．20D．25

[单选题]根据下面的文字资料回答 63～67 题In low-speed network，it is usually adequate to wait for congestion to occur andthen react to it by telling the source of packets to slow down．In high-speednetworks，this approach oftenworks poorly，because in the（ 1 ）between sending

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[单选题]根据下面的文字资料回答 59～63 题 在ISDN网络中，与ISDN交换机直接相连的是（ 1 ）设备，他们通过（ 2 ）实现互连。NT1到用户设备之间的连接点是（ 3 ）。对于非ISDN设备要通过（ 4 ）设备接入ISDN网络，该设备的主要作用是（ 5 ）。第59题：文中（ 1 ）处正确的答案是（ ）。A．TAB．TN1C．TN2D．TE1

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[单选题]根据下面的文字资料回答 71～75 题 connected by（ 1 ）or Hubs,which just move the bits from one network to an identical network. One layer up we find bridgas and swiehes,which operate at data link layer. They can accept （ 2 ） , examine the MAC address, and forward th

[单选题]根据下面的文字资料回答 71～75 题 In the following essay．each blank has four choices．Choose the best answer and write down on the answer sheet．Spread spectrum simply means that data is sent in（ 1 ）pieces over a number of the discrete frequencies available for use

[单选题]根据下面的文字资料回答 71～75 题In the following essay，each blank has fourchoices．Choose the best answer and write down on thean，swer sheet．Microwave communication uses（ 1 ）frequency radio waves that travel instraighdine sthroughthe air．Because the waves cannot（

[单选题]根据下面的文字资料回答 71～75 题 n the following essay，each blank has four choices．Choose the most suitable one from the four choices and write down in the answer sheet．Open Shortest Path First(OSPF)is a（ 1 ）routing algorithm that（ 2 ）work done on the OSI IS-IS i