感染性多发性神经根炎患者，危及生命的是（） A.四肢瘫痪 B.吞咽困难 C.呼吸肌麻

千姿百态的动物可以分为脊椎动物和无脊椎动物两大类。其中脊椎动物的学习行为比无脊椎动物更复杂更高等。下面说法最完整的是： [ ]

A．这有利于脊椎动物适应复杂的生活环境

B．这有利于脊椎动物寻找配偶

C．这有利于脊椎动物有效地逃避敌害

D．这有利于脊椎动物获得更多食物

先阅读A、B两篇短文，然后根据题目要求及所给语境完成下 * * 项任务。

（A）

Regent’s Park is the largest grass area for sports in London. It’s also the second largest park in the city. It opens at 5:00 a.m. all the year around, but the closing time ____1____, depending on the season. Regent’s Park has a lake, several public gardens, some sports grounds and three ____2____ playgrounds. Queen Mary’s Garden inside it is famous for ____3____ of beautiful roses. In the north of Regent’s Park is the London Zoo. It’s ___4____ than any other zoo in the world. People can play many sports in Regent’s Park, including tennis and running. People can go _____5_____ on the main lake and enjoy a picnic in the park, too. There will be sports events of the London Olympic Games in Regent’s Park in 2012.

(B) 

Both the British and Americans speak English. However, there are several differences between American English and British English. For example, the words they use  in daily life are not the same. The British call the first floor of a building the ground floor. The floor above the ground floor is the first floor., which Americans call the second floor. Once you go to Britain and America, you may notice other differences. The British usually hide their feelings. They don’t often start a talk with strangers. On the train the British often spend their time reading newspapers or books. But Americans are more active and easier to talk with.

小题1:阅读A篇文章，用方框中所给的适当形式填1---5空，使文章通顺，连贯，合理。（每空一词，每词限用一次）每题1分

thousand   old   boat   child   change

小题2:同义句转换，每空一词。每空1分

However, there are several differences between American English and British English. 

However, American English is ____________ ____________ British English in several ways. 

小题3:根据B篇短文内容回答问题。1分

What do the British often spend their time reading on the train?

___________________________________________________

下列包含小区重选参数的系统消息类型是（）

A.1

B.2

C.5

D.6

E.8

什么是阀门密封面的研磨？