用长4cm,宽3cm的邮票300枚不重、不漏摆成一个正方形,这个正方形的边长等于______cm.
设正方形边长为x.
则4×3×300=x2,
解得:x=60
故填60.
TCP/IP () layer protocols provide services to the application () running on a computer. The application layer does not define the application itself, but rather it defines () that applications need — like the ability to transfer a file in the case of HTTP. In short, the application layer provides an () 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 () layer consists of two main protocol options — the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).
TCP/IP()layer protocols provide services to the application.
A.application
B.transport
C.link
D.network
腹痛患者在未明确诊断之前,以下处理不正确的是()。
A.禁饮食
B.禁服泻药
C.禁止灌肠
D.止痛
E.抗感染