荧光显微镜是以红外光作为光源。

党的十七届三中全会通过的《中 * * 关于推进农村发展若干重大问题的决定》指出：建立健全土地承包经营权流转，按照依法自愿有偿原则，允许农民以转包、出租、互换、转让、股份合作等形式流转土地承包经营权，发展多种形式的适度规模经营。这有利于[ ]

①调整农村土地所有制结构

②推动农业产业化发展

③进一步完善生产要素市场

④促进土地资源优化配置

A、①③④

B、①②③

C、②③④

D、①②④

一个三段论是一个包括有（）三个部分的论证。

A、前提，论证，结论

B、大前提，小前提，结论

C、原因，论证，结论

A job is more than just a job，especially to the older generation.“It’s not the money that matters，but the sense of self­worth，” 56­year­old Cheng Wonlan said.So，every day Ms Cheng carries a bag of parcels，letters and documents of all shapes and sizes and does her rounds in North Point.She’s a courier(快递人员)．

Five years ago，Ms Cheng was a nurse at a private clinic.She had worked there for almost 30 years but was made jobless when the doctor migrated(移居)．It was extremely difficult for her to find another job.“People do not trust my ability when they learn how old I am，” she said.After two years of searching，the mother of two eventually found another nursing job.But then after two years，she quit.Why?

“My colleagues were young and they didn’t understand me because of my age.They often asked me，‘You are so old；what are you working for？’ I was very unhappy.” she said.So while the rest of her family left for work，she was left to lonely boredom at home.The urge to work drove her to suffering.Then，one of Ms Cheng’s neighbours told her about Employee’s Retraining Board (ERB) offering retraining courses for older people on specific occupations，such as convenience store assistants，junior clerks and so on.

“I was interested in courier work.I didn’t think my age was a barrier because I was fit and healthy.So I thought why not give it a try.” she said.Upon graduation from the ERB，Ms Cheng was offered a job by the Speeding Shuttle Courier Service Company Limited.But then Ms Cheng was faced with a conflict：she was caught between honour and employment.It took Ms Cheng 24 hours to make up her mind and eventually came to the conclusion that there was nothing wrong or embarrassing about doing the job.So she took heart and went off to work as a courier.

Ms Cheng’s employer is delighted with her，“Ms Cheng has been working with us for two months and has shown a good responsible attitude to work.”Anthony Chong，who runs the company，said.Currently，Mr Chong has 60 couriers working for his company：five of them are over fifty，four of whom have been through the ERB plan.Mr Chong said he hired older people because they were able and reliable.“Age is not an important factor but attitude is.Many old people are more capable than the youngsters.They will not run from difficulties but the young ones will，” he said.“It is not easy to recruit (招募) young people since they shy away from hardship and challenges.”

小题1:Why was it difficult for Ms Cheng to find another nursing job?

A．Nursing clinics were hard to find.

B．People thought that old people couldn’t be trusted.

C．People thought she was too old to take on a new job.

D．People didn’t think she had enough working experience.小题2:Ms Cheng left her second nursing job because ________.

A．she was bored

B．it was too difficult

C．she was too old to do the job

D．the other staff made her feel uncomfortable小题3:Employee’s Retraining Board is a plan for ________.

A．finding jobs for older people

B．teaching new skills to older people

C．training older people to be couriers

D．giving older people something to do in their spare time小题4:When Ms Cheng was offered the courier job she ________.

A．took it straight away

B．thought it over and then accepted it

C．thought about it and then refused it

D．refused it straight away but then changed her mind

加强有关社会治安综合治理的( )，是落实综合治理的关键。

A．思想建设

B．纪律建设

C．组织建设

D．规范建设

包括一些海洋学科普作家在内都认为，在大海深处的巨大压力之下，人体会被压扁。实际上，情况似乎并非如此。由于在很大程度上我们本身也是由水组成的，而水——用牛津大学弗朗西斯·阿什克罗夫特的话来说——“______”，因此人体仍会保持与周围的水一样的压力，不会被压死。麻烦的倒是体内的气体，尤其是肺内的气体。那里的气体确实会被压缩，但压缩到什么程度才会被致命，这还不知道。直到最近，人们还认为，要是潜到100米左右的深处，肺脏会内爆，胸壁会爆裂，他或她就会痛苦地死去，但裸潜者反复证明，情况恰好相反。据阿什克罗夫特所说，似乎“人可以比预想的更要像鲸和海豚”。
然而，许多别的方面可能出问题。在使用潜水衣——用长管子连接水面的那种装备——的年代，潜水员有时候会经历一种可怕的现象，名叫“挤压”。这种情况发生在水面气泵失灵，造成潜水衣灾难性地失压的时候，倒霉的潜水员真的会被吸进面具和管子。等到被拖出水面，“衣服里剩下的几乎只有他的骨头和一点儿血肉模糊的东西”，生物学家J．B．S霍尔丹在1947年写道，惟恐有人不信，他接着说，“这种事真的发生过”。
然而，在大海深处真正可怕的是得弯腰病(减压病)——倒不是因为这种病不舒服(虽然不舒服是肯定的)，而是因为发生的可能性大得多。我们呼吸的空气里有80%是氮。要是将人体至于压力之下，那个氮会变成小气泡，在血液和组织里到处移动。要是压力变化太大——比如潜水员上升太快——体内的气泡就会泛起泡沫，犹如刚刚打开的香槟酒瓶那样，堵塞了细小的血管，造成细胞失氧，使病人痛得直不起腰。这就是弯腰病”这个名字的由来。
自古以来，弯腰病一直是潜水采海绵人和潜水采集珍珠人的职业病，但是19世纪以前没有引起西方世界的重视；而且，还包括那些不湿身体(至少不会湿得很厉害，一般不会湿到脚踝以上)的人。他们是沉箱工人。沉箱是密封的干室，建在河床，用于建造桥墩。沉箱里充满了压缩空气；当工人们在人造压力的条件下工作很长时间走出来的时候，他们会经历轻微的症状，比如皮肤刺痛或发痒。但是，无法预料的是，少数人会持续关节痛，偶尔痛得倒在地上，有时候再也爬不起来。
(比尔·布莱森《孤独的行星》，选自《万物简史》，接力出版社，2005)

根据上下文，文中“______”处阿什克罗夫特的话最有可能是：

A．实际上是会变形的
B．实际上是压不扁的
C．实际上是会被压扁的
D．实际上是可以对外产生压力的