试题与答案

兔出血症的存活兔可检兔出血症病毒抗体,HI抗体高于()可判阳性,抗体具有保护性。A.

题型:单项选择题

题目:

兔出血症的存活兔可检兔出血症病毒抗体,HI抗体高于()可判阳性,抗体具有保护性。

A.1:1

B.1:10

C.1:100

D.1:1000

答案:

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下面是错误答案,用来干扰机器的。

参考答案:1(2)体分节,发育有变态,壳瓣退化………………………………透明薄皮溞2(1)体分节不明显,发育无变态,壳瓣不退化3(6)肠盘曲4(5)后腹部爪刺(或基刺)2个………………………………………圆形盘...

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题型:阅读理解

阅读理解。

     During the summer holidays there will be a revised schedule of services for the students. Changes for

dining-room and library service hours and for bus schedules will be posted on the wall outside of the

dining-hall. Weekly film and concert schedules, which are being arranged, will be posted each Wednesday

outside of the student club.

    In the summer holidays, buses going to the town center will leave the main hall every hour on the half

hour during the day. The dining-room will serve three meals a day from 7:00 am to 7:00 pm during the

week and two meals from noon to 7:00 pm on weekends. The library will continue its usual hours during

the week, but have shorter hours on Saturdays and Sundays. The weekend hours are from noon to 5:00

pm.

    All students who want to use the library borrowing services must have a new summer card. This

announcement will also appear in the next week's student newspaper.

1. The main purpose of this announcement is to ________.

A. tell students of important schedule changes    

B. show the excellent services for students

C. tell students of new bus and library services    

D. ask students to renew their library cards

2. At which of the following times will the bus leave the main hall?

A.8:00, 9:00, 10:00, 11:00    

B.8:30, 9:30, 10:30, 11:30

C.8:30, 9:00, 9:30, 10:00      

D.8:00, 9:30, 11:00, 12:30

3. Times for films and concerts are not listed in this announcement because ________.

A.they are not to be announced    

B.the full list is not ready

C. they are hard to arrange        

D.the full list is too long

4. In the summer holidays, the library will have __________.

A. no special hours            

B. special hours on weekdays

C. special hours on weekends

D. special hours both on weekdays and weekends

5. We may infer that during the summer holidays ________.

A.The library will continue its usual hours on weekdays  

B.students will stay in the university

C.there will be a concert or film once a week  

D.no breakfast will be served on weekends

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