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问题 选择题

下列递变规律正确的是 [ ]

A．HClO4、H2SO4、H3PO4的酸性依次增强     

B．HCl、HBr 、HI的稳定性依次增强

C．钠、镁、铝的还原性依次减弱             

D．N、O、F原子半径逐渐增大

答案

C

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                                                          ADVERTISEMENTS
FASHION SHOW
A fashion show will be held on Friday, 16th April at
Silver Sea Hotel, from 7: 30 p. m. to 11: 00 p.m.
Charming models Beautiful clothes -: Amazing show
XINHUA SUPERMARKET
FISH from Z HAN JIANG We have some
kinds of special delicious FISH from
Zhanjiang at seafood counter.
Come and find out all you need.
ZHONGSHAN SCHOOL OF HOTEL WANTED!
English teachers for waiters and hotel workers.
Teaching qualification (资格) and hotel experience
are essential (必要的). Good pay.
Tel. 0755-84869855 for further information
TEACHERS NEEDED
Teachers needed for a small private school.
Experience with young children is necessary.
English speakers preferred.
Apply to: Zhaoyang Primary School, Beijing
Tel: 010-23678893
1. A fashion show will last _____ on Friday.
A. for two hours
B. for two and a half hours
C. for three hours
D. for three and a half hours
2. According to the ads, a qualification is needed if a person wants to work _____.
A. at Zhongshan School of Hotel
B. at Zhaoyang Primary School
C. at Xinhua Supermarket
D. at Silver Sea Hotel
3. Maria has a lot of experience working with children. She wants to get a new job. She may call _____.
A. 0755-84869855
B. 0755-84889655
C. 010-23678893
D. 010-23768893
4. Mr. White has a restaurant, he wants to find some new delicious food for his customers . He can go
    to _____.
A. Xinhua Supermarket
B. Zhongshan School of Hotel
C. Silver Sea Hotel
D. Zhanjiang
5. Which of the following is NOT mentioned in the four ads?
A. Show.
B. Fish.
C. Music.
D. Pay.
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单项选择题

的值是（）

A．

B．

C．

D．
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