徐矿集团安全隐患认定标准将隐患分为（）隐患和（）隐患两类。

下图是位于上海金融中心28楼展示中心内的2010年上海世博会宣传专区。如果100年前，在上海举办世博会，中国人了解世博会不可能采用的方式是

A．充分利用各轮船公司的客轮

B．增加各地飞往上海的民航班次

C．通过政府增发的报刊杂志

D．通过上海装置的无线电台

通过对实验现象的观察、分析推理得出正确的结论是学习化学的方法之一．则下列对实验事实的解释正确的是（　　）

A．A

B．B

C．C

D．D

在电源电压不变的情况下，给感性电路并联电容后，总电流（）。

A.减少

B.增加

C.不变

D.为零

SOCKS is a genetic proxy protocol for TCP/IP-based networking, applications. SOCKS includes two (21) , the SOCKS server and the SOCKS client. The SOCKS server is implemented at the application layer. The SOCKS client is implemented between applications and the (22) layer. When an application client needs to connect to an application server, the client connects to a SOCKS proxy server. The proxy server connects to the application server instead of the client, and (23) data between the client and the application server. For the application server, the proxy server is the (24) . SOCKS is also one of the popular (25) to network firewalls. Because of its simplicity and flexibility, SOCKS has been used as genetic application proxy in virtual private network (VPN), and for extranet applications.

A．workstation

B．user

C．customer

D．client

建立自然保护区的根本目的：保护重要的（）及其环境，拯救濒临灭绝的（），或者是为了保护自然历史遗产。