地址解析协议ARP属于TCP/IP的哪一层( )A．主机-网络层 B．互连层 C．

The Lantern Festival is around the corner. In Beijing, there are many events to celebrate this big day.

Beijing Happy Valley

Date: Until 4th March.

To celebrate this festival, Happy Valley has extended(延长) its opening hours to 20:00. There will be many excellent entertainers and lots of interesting activities like the lion dance, Tibetan song and dance, harlequinade（滑稽表演）and magic performances. Free for visitors.

Address: Xiaowuji N. Rd, E.4 Ring Rd, Chaoyang District

Tel: 010-67383333

Chaoyang Park

Date: Until 5th March

During the Lantern Festival, Chaoyang park will hold a grand Lantern Fair where you can find beautiful lanterns in different shapes and colors. Visitors can also enjoy wonderful folk dances.

Address: No.1, Nongzhanguan Nanlu, Chaoyang District

Tel: 010-65915258

Entrance fee: RMB 20

Kaikang International Hotel

Date: 4th March

From 14:00 to 18:00, this hotel will hold a large singles activity. If you still haven’t found a lover and do not want to celebrate this day alone, you can come here to enjoy the day with other singles. Why not give it a try ? Maybe you will find your true love!

Address: F3 No. 15. Third District, An Zhen Li, Chaoyang District

Cost: RMB 120 per person

Tel: 010-64445364，64428783

4）Beijing Garden of World Flowers

Date: Until 5th March

This fair is an exhibition of traditional Taiwanese lantern arts. There is also a Plum Blossoms display in the Pen Gallery, where you can find blossoms from Sichuan, Hubei and Zhejiang Provinces.

Address: To the north of Majialou Bridge, S.4 Ring Rd.

Entrance fee: RMB 80 per person.

Tel: 010-87500721

59.If you live the east of the Fourth Ring Road, and you want to see performances near your home, you may call________.

A.010-67383333                        B.010-87500721     

C.010-64445364                        D.010-65915258

60.How many places can you visit with no more than 100 RMB ?

A. Two            B. Three                 C One.                    D.Four

61.Mr. Zhang is new in Beijing. He is eager to make friends. Which of the following is the best choice for him ?

A. Beijing Happy Valley                     B. Chaoyang Park

C. Beijing Garden of World Flowers        D. Kaikang International Hotel

下列选项中，（）是指行为人不具有代理权而以他人名义实施代理行为。

A.无权代理

B.委托代理

C.法定代理

D.指定代理

口腔扪诊不能了解病变的

A．性质、组成和结构
B．表面特征、温度和硬度
C．位置、大小和轮廓
D．波动、搏动和压痛
E．移动度及其与邻近组织的关系

尿素界区有几台203调节阀，都在什么位置，压力是多少？

男性，65岁。慢性阻塞性肺疾病20年，因咳嗽、咳痰、气短加重1周入院。入院时神清，血气分析PaO₂45mmHg，PaCO₂70mmHg。吸入40%浓度氧后，患者出现呼之不应，查动脉血气分析示PaO₂85mmHg，PaCO₂100mmHg。患者出现意识障碍的原因是（）

A.感染加重

B.气道阻力增加

C.呼吸中枢受到抑制

D.脑血管意外

E.中毒性脑病