义和团运动首先兴起于（）A．山东 B．直隶 B．天津 D．北京

The physicians in a hospital form the core of the medical staff. But they couldn’t provide effective medical care to their patients without the help of numerous other medical employees. From the viewpoint of the patients, the nursing staff is particularly important. Nurses are usually in close contact with patients as long as they are in the hospital.

A nurse does not study for as many years as a doctor. However, each must be equally dedicated. Caring tot sick persons requires a great deal of patience and concern. Most nurses work long days, and they often must work at odd hours or during the night.

Under the supervision of the head nurse, the nursing staff must provide nursing services on 24-hour basis and attend to patients’ needs. This responsibility continues around the clock, and so nurses must work in shifts. A shift is a period of duty, usually eight in length. The nurses on the ward rotate their shifts. All of them work out of a central area on the ward called the nurses’ station.

A nurse must always be alert. She can never afford to be careless. This is true in all nursing situation, but it is especially true in the intensive care unit. Patients under intensive care duty have one of the most demanding jobs in the hospital.

Serving as a nurse can be a very. rewarding job. But it is not an easy one. Not every person is suited to become a nurse. Only very dedicated people have chosen nursing as a profession.

Why don’t nurses study for as many years as doctors（）

A．Most nurses work long days.

B．They don’t treat patients for illness and injury.

C．Caring for sick patients requires patience and concern.

D．They are not dedicated.

动脉导管未闭的超声表现，下列不正确的是（）。

A.右心室、右心房扩大

B.肺动脉扩张，搏动增强

C.可直接显示未闭的动脉导管

D.导管口血流呈连续性湍流频谱

E.彩色见分流束沿肺动脉外侧上行

由国防科大研制的天河二号超级计算机系统运算1 小时，即相当于13 亿人同时用计算器计算1000 年。已在商用大型飞机设计、高分辨率对地观测、基因测序、生物医药、智慧城市、电子政务、云计算和信息服务等多个领域获得成功应用，取得显著的经济效益和社会效益。“天河二号”的广泛应用并取得的效益表明：

A．创新推动了生产力的发展

B．创新推动了人类思维的发展

C．创新推动了社会制度的巨大变革

D．创新推动了生产关系的变革

桃花汤证不应见到的症状是（）

A.小便不利

B.腹痛

C.下利便脓血

D.里急后重

E.以上都不是

小林老师在讲授《皇帝的新装》一单元时．并没有一开始就进入课文讲授，而是让学生利用20分钟的时间对本单元的内容进行了整体了解，并提出自己的见解。小林老师这么做是遵循了教学设计的哪一原则？（）

A.整体性原则

B.实效性原则

C.可操作性原则

D.系统性原则