学生管理工作的重要性说明它在学校的整体工作中应居于中心地位。（ ）

慢性贫血病人对缺氧的耐受性增加，主要是由于（）

A.心排血量增加，血液循环加速

B.呼吸频率加速，增加换气功能

C.红细胞中2，3-二磷酸甘油酯（2，3-DPG）浓度增高

D.缺氧敏感器官的血流量增加

E.骨髓幼红细胞增生

Health-care services will account for almost one-fifth of all job growth during the 1996～2005 period. Home health-care aids will assist the elderly, disabled, and seriously ill in the patient’s home instead of a health facility. A large number of openings for this field is expected due to very rapid growth and high turnover. In fact, home health-care aids are expected to more than double in number by the end of 2005.

Part of the reason for this increase is the growing population of elderly people. The number of people in their 70s and older is projected to rise substantially. This age group is characterized by mounting health problems that require assistance. There will also be an increasing reliance on home care for patients of all ages. This trend reflects several developments: Efforts to contain (抑制，控制) costs by moving patients out of hospitals and nursing facilities as quickly as possible; the realization that treatment can be more effective in familiar surroundings; and the development of portable medical equipment for in-home treatment.

Turnover in this field is high, which is a reflection of the relatively low skill requirements, low pay, and high emotional demands of the work. Therefore, people who are interested in this work and properly suited for it should have excellent job opportunities, particularly those with previous experience.

Physical therapy, too. is predicted to increase rapidly through 2005. A growing population of elderly people, who are vulnerable to chronic and debilitating (虚弱的) conditions, means that more therapeutic services will be needed. More young people will also need physical therapy as medical advances save the lives of a larger proportion of newborns with severe birth defects. Growth will also result from advances in medical technology that permit the treatment of more disabling conditions. In the past, for example, the development of hip and knee replacements for those with arthritis gave rise to employment for physical therapists to improve flexibility and strengthen weak muscles.

The growing interest in health promotion should also increase the demand for physical therapy services. More employers are now evaluating work sites, developing exercise programs, and teaching safe work habits to employees in the hope of reducing injuries.

A shortage of physical therapists that once existed has all but disappeared. The number of physical-therapy education programs has increased, and more graduates have moved into the labor force. Most graduates receive multiple job offers, and job prospects are expected to continue to be excellent. Physical therapists who are willing to work in rural areas will experience even better opportunities.

Graduate from physical-therapy education programs ().

A. have difficulties in finding jobs

B. aren’t willing to work in rural areas

C. aren’t willing to stay in this profession

D. have good job opportunities

军团病的多次暴发，大多数与下列何种因素有联系( )

A．环境污染

B．空调系统的冷却塔水污染

C．自采水管道污染

D．淋浴器污染

E．临床呼吸机的使用

某项目，经国家有关部门批准后，开始对本项目筹集资金和施工图设计。该项目资金由自筹资金和银行贷款两部分组成，自筹资金已全部到位，银行贷款预计在2009年7月30日到位，2009年3月18日设计单位完成了初步设计图样，于2009年3月20日进入施工图设计阶段，预计2009年5月8日完成施工图设计。建设单位考虑到该项目要在年底前竣工，遂决定于2009年3月19日进行施工招标。施工招标采用邀请招标方式，并于2009年3月20日向与其合作过的施工单位中选择的两家发出了投标邀请书。
问题

在何种情况下，经批准可以采取邀请招标方式进行招标