癃闭脾气不升证，治疗宜首选： A．腹大胀满，按之如囊裹水 B．腹大胀满，脉络怒张 C

短文填空。从下面方框中选出10个单词，用它们的适当形式填入短文空格内，使短文意思正确、通顺(每词限用一次)。按编号将答案依次填人题后的表格内。(共10小题，每小题1分；计10分)

The verb“chat”means to talk(to someone)in a friendly，informal(非正式的)way．Today there are many  1 on the Internet where you can chat．You can chat with people all over the world，in many languages and about many subjects or topics．These places  2 “chatroom”．Sometimes you need to register(注册)to enter a chatroom．You need to provide a username and possibly your e-mail  3 ．Your username does not have to be your  4 name．It can be any name you want．When you have your usemame，other people in the chatroom will call you by that name and 5 else can use it．

Chatting is a good way to  6 your informal English．Messages in a chatroom are usually short sentences．Sometimes  7 are not even sentences， 8 just a few words that are not really grammatically correct．It’s a typical way in which we speak in a  9 conversation with friends．To save time，people often use abbreviations like TTYL(talk to you later)or IDK(I don’t know)．So don’t go to a chatroom to practice“perfect”English．Go to a chatroom to practice informal English and find new  10 ．You can even use a chatroom to help improve your typing skills if you want．

设f₁（x）和f₂（x）为二阶常系数线性齐次微分方程y″+py′+g=0的两个特解，若由f₁（x）和f₂（x）能构成该方程的通解，下列哪个方程是其充分条件（）？

A.f₁（x）·f′₂（x）-f₂（x）f′₁（x）=0

B.f₁（x）·f′₂（x）-f₂（x）·f′₁（x）≠0

C.f₁（x）f′₂（x）+f₂（x）·f′₁（x）=0

D.f₁（x）f′₂（x）+f₂（x）f′₁（x）≠0

外事警察实行义务兵役制，属中国人民武装警察部队序列。( )

列控车载设备有（）（FS）、部分监控模式（PS）、目视行车模式（OS）、调车模式（SH）、（）（IS）和待机模式（SB）等六种。

中国原创的文化题材最大热门节目《中国汉字听写大会》受到了全国各界人士的喜爱与鼓励。2014年汉字听写大会的口号是“让书写在古籍里的文字活起来”。这个口号是基于汉字（）

①是中华文明发展程度的重要标志

②是中华文化的基本载体

③承载着中华传统文化的深厚底蕴

④是人类文明时代的重要标志

A、①③

B、①④

C、②③

D、②④