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问题 单项选择题 A1型题

早期诊断乙脑常用的实验室检查是（）

A.血凝抑制试验

B.中和试验

C.特异性抗体IgM测定

D.特异性抗原

E.补体结合抗体

答案

参考答案：C

解析：特异性IgM抗体测定，目前多用此法进行乙脑的早期诊断。

填空题

已知关于x的方程x2-（2k-1）x+k2=0有两个相等的实数根，则k=______．
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单项选择题

Section Ⅰ Use of English Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. Many foreigners who have not visited Britain call all the inhabitants English, for they are used to thinking of the British Isles as England. (1) , the British Isles contain a variety of peoples, and only the people of England call themselves English. The others (2) to themselves as Welsh, Scottish, or Irish, (3) the ease may be; they are often slightly annoyed (4) being classified as "English". Even in England there are many (5) in regional character and speech. The chief (6) is between southern England and northern England. South of a (7) going from Bristol to London, people speak the type of English usually learnt by foreign students, (8) there are local variations. Further north regional speech is usually" (9) " than that of southern Britain. Northerners are (10) to claim that they work harder than Southerners, and are more (11) . They are open-hearted and hospitable; foreigners often find that they make friends with them (12) . Northerners generally have hearty (13) : the visitor to Lancashire or Yorkshire, for instance, may look forward to receiving generous (14) at meal times. In accent and character the people of the Midlands (15) a gradual change from the southern to the northern type of Englishman. In Scotland the sound (16) by the letter "R" is generally a p sound, and "R" is often pronounced in words in which it would be (17) in southern English. The Scots are said to be a serious, cautious, thrifty people, (18) inventive and somewhat mystical. All the Celtic peoples of Britain (the Welsh, the Irish, the Scots) are frequently (19) as being more "fiery" than the English. They are (20) a race that is quite distinct from the English. Notes: fiery暴躁的，易怒的。

Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.9（）

A．delivered

B．denoted

C．depicted

D．defined
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