2小时后，呼吸困难加重，咳嗽，颈、胸部出现皮下气肿，左侧呼吸音消失，胸片显示左肺被压

人类基因组中存在的大量大于1kb的结构变异被称为（）。

A.单核苷酸多态

B.限制性片段长度多态性

C.串联重复序列

D.拷贝数变异

E.微卫星

单元幕墙连接处或吊挂处的铝合金型材的壁厚不得小于（）。

A.3mm

B.4mm

C.5mm

D.6mm

根据剩余法的基本原理，下列计算公式正确的有（）。

A.地价＝开发后不动产总价值－整个项目开发成本－开发商正常利润

B.地价＝市场价格－正常成本－正常利润－不可预见费

C.地价＝不动产总价－建筑开发费－管理费－维修费－保险费－税金－开发商利润

D.地价＝房地产预期售价－建筑总成本－销售费用－税金－利息

E.地价＝不动产总价－建筑开发费－专业费－利息－税金－开发商利润

管线综合中管道的布置方式有（）

A.交互管线布置

B.沿路自动布线

C.定义管线

D.沿路边线布线

Networks can be interconnected by different devices in the physical layer networks can be connected by (71) or hubs．which just move the bits from one network to an identical network．One layer up we find bridges and switches which operate at data link layer．They can accept (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe packer formats．In the transport layer we find transport gateway，which can interface between two transport connections Finally，in the application layer，application gateways translate message (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．

A．special

B．dependent

C．similar

D．dissimilar