劳务工人工资发放记录表要求（）三方签字后，报总包项目部和总包企业财务部备查。 A.务

TCP/IP (71) layer protocols provide services to the application (72) running on a computer. The application layer does not define the application itself, but rather it defines (73) that applications need--like the ability to transfer a file in the case of HTTP. In short, the application layer provides an (74) between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP (75) layer consists of two main protocol options--the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

（75）处填（）。

A．application

B．session

C．physical

D．transport

子宫脱垂Ⅱ度重型的依据是

A．子宫颈外口在坐骨棘水平以下

B．子宫颈外口下降到距 * * 口不足4cm

C．子宫颈外口位于 * * 口内

D．子宫颈及部分子宫体露出 * * 外口

E．子宫颈及子宫体完全脱出于 * * 口外

什么叫动车组？

当液压缸活塞所受的外力一定时，活塞的有效作用面积越大，其所受的压力就（）（是液压系统中压力是由负载决定的）

A.越大

B.越小

C.不变

D.先小后大

气动调节阀出现故障时会产生什么现象？