分子生物学的观点认为，与肿瘤发生的有关因素为（）。 A.癌基因的激活 B.肿瘤抑制基

任务型阅读（共5小题，每小题1分，共5分）

阅读短文，完成76-80题。

There are over 800 boarding (寄宿) schools in the UK. Children of 7 to 18 can go to boarding schools.

    1  

In the UK, boarding schools have three terms in a school year, each student has his or her  subject plan. Besides the usual classrooms and laboratories, the boarding schools also have music rooms, boats, swimming pools, cinemas and theatres for their students.

    2  

There are some rules for the students at boarding schools to obey. Students study and live together. They can’t go outside if they are not allowed to. Most boarding schools have a “light out” time. So when it’s time to go to bed, all the lights in the bedrooms are turned off.

   3   

Nearly all students at boarding schools wear a school uniform. Boys usually wear a shirt and a tie, and girls wear a white blouse, sometimes also a tie and a skirt. As students get older, the rules become less strict.

    4  

In the UK, boarding schools provide students with delicious food. They can choose to have a full English breakfast or simply bread. They can also choose between a meal with no meat and another meal at lunch and dinner. Students can also make themselves something to eat at any time in a kitchen.

从A, B, C, D中选择正确的选项作为文章第2-5段的小标题，并填入76-79四个空格中。

小题1: ___________       

小题2: ___________      

小题3:___________  

小题4: ___________

A．What to eat

B．What to wear

C．What to learn

D．What to obey小题5: Which is the best title for the passage?

A．Boarding schools in the UK

B．How to study in the UK

C．Students work hard in the UK

D．The history of boarding schools in the UK

58岁男性，有COPD病史，因渐进性呼吸困难就诊。到院时血压150／93mmHg，脉搏112／min，呼吸24／min，体温37．9℃，SpO₂91%。急诊医师在下列哪种情形下最不应考虑使用无创通气（）

A.该患者病情恶化致呼吸停止

B.该患者动脉血PaCO₂达60mmHg，且pH7.30

C.该患者呼吸困难，已须使用呼吸辅助机呼吸

D.该患者呼吸困难，已有腹式呼吸

E.该患者病情恶化致呼吸速率已达28／min

种群的年龄结构有（）几种类型。

A.增长型

B.稳定型

C.衰退型

D.均衡型

浮力式液位计按工作原理可分为（）。

A、浮筒式液位计和浮球式液位计

B、浮筒式液位计和浮标式液位计

C、恒浮力式液位计和变浮力式液位计

D、翻板式液位计和浮子钢带液位计

衡平法存在于我国的（）。

A.台湾地区

B.澳门地区

C.香港地区

D.台湾和香港地区