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问题 单项选择题 A1/A2型题

临床上鉴别肾性小球血尿及非肾小球性血尿最简单的方法是（）

A.新鲜尿离心沉渣高倍镜检查

B.新鲜尿离心沉渣相差显微镜检查

C.新鲜尿离心沉渣显微镜检查

D.新鲜尿离心沉渣油镜检查

E.肉眼观察尿的颜色

答案

参考答案：B

单项选择题

对于上市公司的持续性监管的重点是( )。

A．公司备案制度

B．信息披露制度

C．财务公开制度

D．上市核准制度
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单项选择题

A glue that holds the whole Internet together is the network layer protocol, ___35___. Unlike most older network layer protocols, it was designed from the beginning with internet working in mind. Its job is to provide a-___36___ way to transport datagrams from source to destination, without regard to whether these machines are on the same network or whether there are other networks in between them.

Communication in the Internet works as follows. The ___37___.layer takes data streams and breaks them up into datagrams. Each datagram is transmitted through the Internet, possibly being fragmented into smaller units as it goes. When all the pieces finally get to the destination machine, they are reassembled by the ___38___ layer into the original datagram. This datagram is then handed to the transport layer, which inserts it into the receiving process input stream.

An IP datagram consists of a header part and a text part. The header has ___39___ part and a variable length optional part.

38（）

A.data link 

B.Transport 

C.network 

D.Application
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