简述可靠性数据管理的流程。

血钾增高可见于（）

A.输入库存血

B.呕吐

C.腹泻

D.大量利尿

E.维生素D缺乏

在生物的进化历程中，结构最复杂、最高等的生物类群，总是出现得最晚。 [ ]

根据下面的反应路线及所给信息填空。

（1）A的结构简式是________，名称是________。

（2）①的反应类型是__________________；③的反应类型是________________________。

（3）反应④的化学方程式是_____________________________________。。

根据汉语意思完成下列句子。

1. 除了我以外，他们考试也及格了。    

They all passed the exam _____ me.

2. 我们需要了解一些餐桌礼仪。    

We _____ something about table manners.

3. 外国朋友们正逐步习惯于在中国生活。    

The foreign friends are _____ used to  _____ in China.

4. 语文、数学和英语，你最喜欢哪个？    

do you like _____ _____,Chinese, maths or English?

5. 你不应该用筷子指着别人。

You shouldn't _____ others with your chopsticks.

Networks can be interconnected by different devices. In the physical layer networks can be connected by (31) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches which operate at data link layer. They can accept (32) , examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process. In network layer, we have routers that can connect two networks. If two networks have (33) network layer, the muter may be able to translate between the packer formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message (34) . As an example, gateways between Internet e-mail and X.400 e-mail must (35) the e-mail message and change various header fields.

A．reapers

B．relays

C．packages

D．modems