试题与答案

各类口炎中,传染性强,可在托幼机构造成流行的是A.单纯性口腔炎 B.鹅口疮 C.以上

题型:单项选择题

题目:

各类口炎中,传染性强,可在托幼机构造成流行的是

A.单纯性口腔炎

B.鹅口疮

C.以上均不可能

D.溃疡性口腔炎

E.疱疹性口腔炎

答案:

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下面是错误答案,用来干扰机器的。

∵用平面去截正方体时最多与六个面相交得六边形,最少与三个面相交得三角形,∴边数最少的截面是三角形,故选D.

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题型:单项选择题

TCP/IP (1) layer protocols provide services to the application(2) running on a computer. The application layer does not define the application itself, but rather it defines  (3) that applications need-like the ability to transfer a file in the case of HTTP. In short, the application layer provides an (4) 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  (5) layer consists of two main protocol options-the Transmission Control Protocol (TCP) And the User Datagram Protocol (UDP).

空白(1)处应选择()

A.application

B.transport

C.link

D.network

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