问题 单项选择题

关于无牙颌上颌结节的叙述,正确的是

A.牙槽嵴两侧的圆形骨突

B.上颌结节颊侧多有明显倒凹

C.义齿基托不应覆盖结节颊面

D.基托在结节远中尽量伸展

E.上颌结节是主承托区

答案

参考答案:B

解析: 从专业知识判断,上颌结节是上颌牙槽嵴两侧远端的圆形骨突,表面覆盖黏膜。颊侧多有明显倒凹,与颊黏膜间形成颊间隙。义齿基托应覆盖整个结节颊面,并尽量伸展以增加固位。上颌骨的颊唇腭侧是副承托区。 综上所述,可推断答案A、C、D、E错,只有B对,故选B。

阅读理解

Events

Long March exhibit

The Shanghai History Museum is putting on exhibition to remember the Long March(长征) which took place 75 years ago. More than 220 photos and 40 other things are on show. All the exhibition is explained in Chinese. The show will end on November 20.

Time: 10:00 a.m.—4:00 p.m.

Address: 1286 Hongqiao Road

Ticket: 8 yuan for Chinese / 15 yuan for foreigners

Thai elephants

Eight elephants from Thailand are an attraction for visitors at Changfeng Park by riding bikes, playing basketball, dancing and blowing a musical instrument. The elephants give three shows a day at 9:30 a.m., 3:30 p.m. and 8:00 p.m. and there is an extra show at 1:30 p.m. at weekends. The show will end on November 15.

Address: 189 Daduhe Road

Ticket: 30—40 yuan

Dancing dolphins

Dolphins jumping from the water to touch a ball, dancing to music, kissing people and doing easy math problems, and seals and sea lions, also performing, have made a large part of the aquarium in Peace Park, which interests children greatly.

Hours: 10:30 a.m., 4:00 p.m., and 7:30 p.m.

Ticket: 20 yuan for adults and 10 yuan for children

小题1:Where can one see the Long March exhibition?

A.In Shanghai History Museum.

B.In Changfeng Park.

C.In Peace Park.

D.On 189 Dahude Road.小题2:How many shows do the Thailand elephants give at weekends?

A.One.

B.Two.

C.Three.

D.Four.小题3:What may interest children very much in Peace Park?

A.Elephants playing basketball.

B.Dolphins dancing to the music.

C.Seals riding bikes.

D.Sea lions blowing instruments小题4:How much should a child pay to go into Peace Park?

A.Five yuan.

B.Fifteen yuan.

C.Ten yuan.

D.Twenty yuan. 小题5:Which of the following is true? 

A.The Long March exhibition is explained in English.

B.The sea animals can work out difficult math problems.

C.Thai elephants’ shows can only be seen in the day.

D.The sea animals perform three times a day.

多项选择题