—Is pork healthy food or unhealthy food?

患者，男性，21岁，主诉无明显诱因出现右大腿下端内侧疼痛，开始呈间歇隐痛，逐渐转为持续性剧痛，夜间疼痛加重，影响睡眠，局部肿胀，迅速发展成肿块，表面皮肤温度高，静脉怒张，可出现震颤和血管杂音，X线检查显示股骨干骺端骨质呈浸润性破坏，边界不清，可见Codman三角，呈"日光放射"现象，周围有软组织块阴影。

上述X线中的Codman三角是指（）

A.三角形骨膜反应阴影

B.三角形骨质破坏

C.膝部软组织中装成倒三角

D.肿瘤血管长入呈三角形分布

E.新生骨向骨外生长，基底广，尖部小

在以下氧化性气体中，（）对烧损的影响最大。

A．SO2

B．O2

C．H2O

“十一五”规划的核心内容是( )。

A．经济结构调整

B．产业结构优化

C．增长方式转变

D．教育优先发展

Low levels of literacy and numeracy have a damaging impact on almost every aspect of adults, according to a survey published yesterday, which offers (1) of a developing underclass. Tests and (2) with hundreds of people born in a week in 1958 graphically illustrated the (3) of educational underachievement. The effects can be seen in unemployment, family (4) , low incomes, depression and social inactivity.

Those who left school at 16 with poor basic skills had been employed for up to four years less than good readers (5) they reached 37. Professor John Bynner, of City University, who carried the research, said that today’s (6) teenagers would even encounter greater problems because the supply of (7) jobs had shrunk.

Almost one fifth of the 1,700 people interviewed for yesterday’s report had poor literacy and almost half (8) with innumeracy, a proportion (9) other surveys for the Basic Skills Agency. Some could not read a child’s book, and most found difficult (10) written instruction.

Poor readers were twice as likely to be a low wage and four times likely to live in a household where partners worked. Women in this (11) were five times as likely to be (12) depressed, (13) both tended to feel they had no control over their lives, and to trust others (14) .

Those who had low literacy and numeracy were seldom (15) in any community organization and less likely than others to (16) in a general election. There had been no (17) in the literary level of (18) reporting problems.

Alan Wells, the agency’s director, said: “ The results emphasize the dangers of developing an underclass people, who were out of work, (19) depressed and often labeled themselves as (20) . There is a circle of marginalization, with the dice against these people and their families.”

18（）

A.employees

B.interviewees

C.participant

D.researchers

检查发现部分员工在代理保险过程中夸大盈利能力，刻意回避阐述产品风险，这一现象提炼出操作风险点的名称为“误导销售”，其风险类别为（）。

A.产品销售

B.内部欺诈

C.外部欺诈

D.客户、产品与业务活动