李某用欺诈手段与某企业签订了劳动合同。该劳动合同被劳动争议仲裁机构认定为无效，但李某

下列哪组属于生产者 [ ]

A．海带和白菜

B．蘑菇和水草

C．玉米和蚯蚓

D．水稻和细菌

材料一　中国民众在义和团运动中所显示的巨大反抗力量与生命力，使西方列强深为震慑，从此不敢轻言瓜分中国……以慈禧为首的清王朝最高执政集团，在追究并清算“原教旨”式的保守派在庚子事变中的责任之后，出于对权威危机的恐惧，于是一变而为新的改革政策的积极推行者。从庚子事件到辛亥革命以前，清王朝在其最后十一年中发起了一场大规模的社会改革运动——清末新政。

材料二　清末新政是一场改革运动。它和历史上所有传统君主制下的改革一样，以传统政治权威合法性为基础，运用传统的官僚行政组织手段，自上而下地进行政策创新，在保持既存秩序的历史连续性的基础上，渐进地推进社会变迁和政治结构的自我更新，并实现从传统社会向现代社会的过渡……这场新政包括废除科举，创办新式学堂，奖励出国留学，扩展新式军队，改革司法制度和巡警制度，创立地方自治与筹备立宪，等等。

从现代化的历史发展的角度来看，在这十多年的时间里，中国的社会风俗和政治生活与过去几十年相比，发生了重大的变化。新的社会利益集团和政治势力开始崛起，这种社会风气的变化，甚至已经影响到内地省份的一些偏远角落。

——以上材料均摘自萧功秦《危机中的变革》

请回答：

(1)根据材料一，概括清末新政出现的历史背景。(9分)

(2)根据材料二，归纳清末新政的主要特点。(11分)

地方统计调查项目最主要的特点，就是其具有一定的地域性，只能在一定的地域范围内组织实施。（）

患者男性，60岁，因反复咳嗽、咳痰30年，加重伴发热、呼吸费力1天，拟COPD、Ⅱ型呼吸衰竭入院，2小时前出现神志不清而气管插管后接呼吸机辅助通气，患者血压85∕55mmHg，查血气分析示pH7.22，PaCO₂86mmHg，PaO₂50mmHg，30mmo1∕1，BE－5.5mmo1∕1。

经呼气末屏气测定，患者确实存在内源性PEEP，以下哪项治疗最可能降低内源性PEEP（）。

A.延长吸气时间

B.降低吸气流量

C.增加潮气量

D.降低呼吸频率

E.以上均不能

Work/life balance was the buzz phrase of the late 1990s. Apparently too many people who were cash rich and time poor were becoming fed up with the long hours culture and wanted more balance in their life. For students, the issue is not work/life balance but work/study balance.
With ever increasing fees, working while studying is the norm for many students. Faced with potentially huge debts, some students may be tempted to take part time jobs that involve working lots of hours, but this may have a detrimental impact on their studies.
University is more than just about getting a degree: extracurricular activities and a social life are also important. How can students balance studying with working part-time and also ensure that they do not miss out on university life
Develop a study plan
Once you have your timetable, and an idea of when your assignments are due, develop a plan of the best times for you to study, whether this be evenings, mornings or weekends. This will help you determine which hours and days you can work.
41. Choose a job that is flexible
You may need time off from your job during exams or if you have deadlines for coursework, so choosing the right job, where the employer is understanding and willing to be flexible, is important.
You can mention this at interview, but Brian Staines of Bristol University Careers Office says: "It may be better to wait until you have been offered the job, have worked for a while, and have had the opportunity to prove yourself before mentioning that you might need time off. "
42. Choose a job that fits in with your study pattern
Working out your study pattern, i. e. whether you’re at your best in the mornings, evenings or late. Some students are night owls preferring to study late at night, others are larks.
43. Don’t take a job that’s too demanding
The type of job you look for will depend on your skill set. Apart from the usual student-type jobs, there are roles in offices which can be done at weekends and evenings-jobs such as being a presentation operator using PowerPoint or even evening and weekend secretarial work.
44.Be industrious in your search for work
There may be part-time jobs available in call centers or as photocopy clerks in banks and law firms.
45.Know your limits
There isn’t a figure for the maximum number of hours that students can work before it impacts negatively on their studies since this will vary from student to student.
However, Brian Staines says: "At Bristol, we believe that if students work more than 12 hours a week during term time, this could have a negative effect on their studies. We have a job shop at Bristol offering part-time jobs and all the jobs are a maximum of 12 hours. "
Balancing part-time work with studying is a challenge that more and more students will face.
"A part time job, which involves long hours, may help their finance in the short term but could have a negative impact on long-term job prospects if they don’t get a good degree, "adds Brian.
[A] "When you look for a job, it’s best to start with working a few hours and then once you get used to the job and know how much you can cope with, you can increase the hours. It’s always easier to increase rather than decrease the number of hours you work," says Cary Cooper, professor of psychology and health at Lancaster University Management School.
[B] There may even be jobs in security, which give you the opportunity to study "on the job", perhaps on sit at an unoccupied building, so it’s a good idea to cast the net a bit wider when looking for part-time work.
[C] Although these jobs pay well, it may be a challenge to balance studying with these types of job. "A job develping PowerPoint presentations may be too mentally demanding and tiring because you will be looking at a screen most of the time, "says Cary.
[D] "If students for example work 20 hours a week, then their work could suffer unless they are incredibly disciplined," he explains, "Also university is about more than just studying. Social time and extracurricular activities are also important."
[E] Relaxation is also very important.
[F] Some students may prefer to work a few evenings a week, others at weekends. "Although work is important, they need to find a job with hours that fit around their optimal times for studying rather than the other way round, "says Professor Cooper.