压紧螺母引入装置含（）。A、压紧螺栓 B、o型圈 C、胶质垫圈 D、金属挡板

抛物线y²=4x的焦点坐标为[ ]

A、（0，1）

B、（1，0）

C、（0，2）

D、（2，0）

阅读理解。

     Mouse potatoes joined couch potatoes (who spend much time watching TV on the couch), google

officially became a verb and drama queens (extremely emotional persons) finally found the attention when

they crossed over from popular culture to mainstream English language.

    The mouse potato, the himbo (attractive, empty-headed man) and drama queen were among 100 new words added to the 2006 update of America's best-selling dictionary, the Merriam-Webster Collegiate

Dictionary《韦氏大词典》. The Internet search engine Google also found its way into the dictionary for

the first time as a verb, meaning to find information quickly on the worldwide web. 

    New words and phrases from the fields of science, technology, pop culture and industry are chosen

each year by Merriam-Webster's team of editors after months of looking through books, magazines and

even food labels. "They are not tracking spoken language. They are looking for evidence that words have been used in the written English language," said Arthur Bicknell, senior editor of Merriam-Webster.

    Other words first coming into the dictionary this year were soul patch (a small growth of beard under

a man's lower lip), unibrow (two eyebrows joining together) and supersize － the fast food industry

phrase for extra large meals.

    The technology world contributed ringtones (changeable incoming cellphone call signals) and spyware

(software installed in a computer to track a user's activities) while biodiesel (生物柴油) and avian

influenza(禽流感) came from the world of science.

America's first dictionary-Noah Webster's A Compendious Dictionary of the English Language －was

published 200 years ago and also introduced some fresh words that have now become familiar. Those

"new" words in 1806 included slang, surf, psychology, naturally and Americanize.

1. The mouse potato refers to ____________.

A. a mouse that lives by potatoes

B. a person who spends much time on the computer

C. a mouse that is shown on the screen of the computer

D. a person who likes to eat mice and potatoes

2. Which group of words and phrases is NOT the fresh words for the dictionary of this   year?  

A. mouse potatoes, google, drama queen.

B. himbo, soul patch, unibrow, supersize.

C. ringtones, spyware, biodiesel, avian influenza.

D. couch potatoes, surf, psychology, Americanize.

3. Which of the following statements is NOT true according to the text?

A. New words and phrases were introduced into the dictionary have close relationship with the time.

B. New words and phrases chosen by the editors of the dictionary have been used in  

     written English somewhere.

C. Some words that are now familiar to us used to be fresh words collected in the dictionary.

D. The Merriam-webster Collegiate Dictionary becomes the best-seller because 100 new words

      are added to it.

高锰酸钾滴定法测定钙含量是在酸性溶液中进行的

患者，男性，30岁，颅底骨折后突发右眼视力下降，眼球突出。查Vod0.2，Vos0.9。右眼睑水肿，结膜血管怒张类似"海蛇头"样，眼底视盘水肿，视网膜出血，右眼向正前方搏动性突出并可闻及血管杂音。

该患者的初步诊断为（）

A.眶蜂窝织炎

B.眶内积血

C.颈动脉海绵窦瘘

D.海绵窦血栓形成

E.脑膨出

现有用户登录界面如下。

窗体中“用户名”文本框(名为username)用于输入用户名，“密码”文本框(名为pass)用于输入用户的密码。用户输入用户名和密码后，单击“登录”按钮(名为login)，系统查找名为“密码表”的数据表，如果“密码表”中有指定的用户名且密码正确，则系统根据用户的“权限”分别进入“管理员窗体”和“用户窗体”；如果用户名或密码输入错误，则给出相应的提示信息。

“密码表”中的字段均为文本类型，数据如下表。

单击“登录”按钮后相关的事件代码如下，请补充完整。

Private Sub login_Click()

Dim str As String

Dim rs As New ADODB.Recordset

Dim fd As ADODB.Field

Set cn=CurrenfProjet.Connection

logname=Trim(Me!username)

pass=Trim(Me!pass)

If Len(Nz(logname))=0 Then

MsgBox "请输入用户名"

Else If Len(Nz(pass))=0 Then

MsgBox "请输入密码"

Else

str="select * from 密码表 where 用户名=’"＆logname＆"’ and 密码=’"＆pass＆"’"

rs.Openstr，cn，adOpenDynamic，adLockOptimistic，adCmdText

If (14) Then

MsgBox "没有这个用户名或密码输入错误，请重新输入"

Me username=""

Mepass=""

Else

Set (15) =rs.Fields("权限")

If fd="管理员" Then

DoCmd.Close

DoCmd.OpenForm "管理员窗体"

MsgBox "欢迎您，管理员"

Else

DoCmd.Close

DoCmdOpenForm "用户窗体"

MsgBox "欢迎使用会员管理系统"

End If

End If

End If

End Sub

（14）是（）