关于α1微球蛋白的叙述，错误的是（） A.主要由淋巴细胞和肝细胞产生 B.以游离型和

角的两条边是两条直线．______．

细胞表面具有抗原识别受体，必须经抗原激发才能活化发挥其效应细胞的作用，可视之为特异性细胞免疫。包括（）

A.B淋巴细胞

B.杀伤细胞

C.巨噬细胞

D.天然杀伤细胞

E.由T细胞介导的细胞免疫

Short people, studies have shown , are more likely to have a stroke , suffer from high blood pressures and heart disease and be bullied in school .

Now, researchers report that short people—at least in the past—were also more likely to die at a younger age than their taller peers.

Their study, published in the Journal of Epidemiology (流行病学) and Community Health , found that short bones have something to do with short life for more than 1,000 years. The conclusion was based on 490 sets of adult skeletal(骨架) remains from an archaeological(考古学的) site in northeastern England , YC dating from the 9th century to about 1850 .

About 55% of men and 73% of women died before the age of 45, and 39% of men and 56% of women died before age 30. The risk of death before age 30 declined as bone length increased.

“This study provides evidence from an archaeological sample that long bone length is connected with age at death—those with smaller bones tend to die younger,” according to Dr. D.J. Gunnell of the university of Bristol  in the UK and colleagues .

While it is not clear why short stature(身材) might be linked to earlier death , the researchers point out that height is an indicator of childhood nutrition, which may have long-lasting effect on health .

“Mechanism (身体结构) for height-mortality(死亡) associations in the past may differ from those today , for example , short stature may have increased the risk of death in childbirth and this may explain the higher risk of premature(未成熟的) mortality in women,” Gunnell and colleagues write .

“However, short bones, it would appear, have always been a marker of a short life,” the authors conclude.

小题1:The title of the passage should be        .

A．Short people and their taller peers

B．Men and women

C．Short stature and short life

D．Long life and short life小题2:“An indicator” in Paragraph 6 means        .

A．a study

B．a marker

C．a risk

D．an age小题3:Which of the following statements is Not true according to the passage?

A．People with smaller bones were more likely to die younger.

B．Women were more likely to die at a young age.

C．Short-stature women bear higher risk of death in giving birth to babies.

D．Most people were more likely to die at the age of 30 in the past.小题4:Short stature may be caused by        .

A．less childhood nutrition

B．heart disease

C．some illnesses

D．high blood pressure小题5:The topic in this passage is probably connected with

A．space medicine

B．sports medicine

C．social medicine

D．industrial medicine

经营管理价值观包括( )。

A．最佳管理价值观

B．委托管理价值观

C．工作质量价值观

D．最大利润价值观

直流复激发电机的图形符号上的激磁绕组是（）联接。

A.串联

B.并联

C.既有串联又有并联

D.永磁