患者，男，72岁，左上后牙自发痛伴搏动性跳痛2天。检查：左上7远中邻面深龋洞，叩（+

根据《中国证监会股票发行核准程序》的规定，股份有限公司的发行申请文件应由（）推荐并向中国证监会申报。

A．另一家上市公司

B．证监会的当地派出机构

C．主承销商

D．承销团

如图，一个实心圆球分为内外两层。内层由甲物质组成，外层由乙物质组成，且内层半径是外层半径的1/3。内层质量是外层质量的1/2。那么，甲、乙两种物质的密度之比是              。（提示：圆球的体积计算公式V_球=4πr³/3,r为圆球的半径）

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).

A. hardware B. software C. packetD. equipment

（）及附加的自动处理是在设定日的日终系统对所有损益科目批量入账完毕后，如日终利息收入的批量扣收、外汇买卖损益计算和结转等，系统（）计提税金并作自动入账处理。

渥堆