常见的慢性胃炎有___、___、___和___四种,其中与胃癌的发生关系较密切的是___。
参考答案:慢性浅表性胃炎;慢性萎缩性胃炎;肥厚性胃炎;疣状胃炎;慢性萎缩性胃炎
如图是人体组织内的各种结构示意图A、B、C、D表示的是结构,①②③④表示的是液体,有关此图的叙述错误的是
A.②可以进入A、C、D
B.C02浓度最高的液体是③
C.血红蛋白属于①的成分
D.①②③④组成了体液
An internet is a combination of networks connected by () . When a datagram goes from a source to a () , it will probably pass many () until it reaches the router attached to the destination network. A router receives a () from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet The decision is based on optimization: Which of the available () is the optimum pathway
When a datagram goes from a source to a ()
A.user
B.host
C.city
D.destination