女性，26岁，G1P0，孕1～2分钟，宫口开全近2小时， * * 口不见胎头，却见一薄膜膨

我国现行税率分为定额税率、比例税率和累进税率三种，通常适用定额税率的有( )。

A．资源税

B．车船税

C．城镇土地使用税

D．公民个人所得税

第二节：根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

In so many ways, cyberspace (网络空间) mirrors the real world. Some people ask for information, play games, and share hobby tips.  71  Still others look for friendship, or even love.

Unlike the real world, however, your knowledge about a person is limited to words on a computer screen. Identity (身份) and appearance mean very little in cyberspace.  72  So even the shyest person can become a chat-room star.

Usually, this “faceless” communication doesn’t create problems. Identity doesn’t really matter when you’re in a chat room discussing politics or hobbies. In fact, this emphasis on the ideas themselves makes the Internet a great place for exciting conversation (对话).  73

But some Internet users want more than just someone to chat with.  74  Is cyberspace a good place to find love? That answer depends on whom you ask.

75  Others fail miserably.

A．Instead, a person’s thoughts or at least the thoughts they type are what really matters.

B．Others buy and sell products.

C．They’re looking for serious love relationships.

D．But cyberspace is different from the real world in some aspects (方面).E. Some of these relationships actually succeed.

F. Where else can so many people come together to chat?

G. Chatting online isn’t always reliable (可靠的).

压力容器投入使用时可不办理注册登记、不领取使用证。

以下选项中，( )不属于公安领导工作的内容。

A．行政领导工作
B．政治领导工作
C．组织领导工作
D．业务领导工作

当几台计算机试图在同一根电缆上同时传输数据时会发生什么情况？（）

A.什么也没发生。每一帧都很好地被接收

B.发生冲突现象

C.数据被弄乱了，但是通过循环冗余码校验得到整理

D.数据返回数据源等待重新发送