过热与过烧没有区别。

巨噬细胞对外源性抗原加工处理和递呈过程不包括（）。

A.吞噬体形成

B.吞噬溶酶体形成

C.抗原降解成抗原肽

D.抗原在内质网中加工修饰

E.抗原肽与MHCⅡ类分子结合形成复合物

Federal Child Labor Standards for Teenagers

Teenage labor in the United States

Federal Law sets child labor standards affecting teenage workers in the private companies and in federal, state, and local governments.

How can injuries be prevented?

Demand Training

Insist on adequate supervision（监督）and easy access to a supervisor at all times．

Demand sufficient training on equipment and chemicals you are required to use．Refuse to use unknown materials or machinery that is broken or improperly set up．

Wear protective equipment

Always use whatever protective equipment is supplied．Protective clothing includes non-slip shoes, gloves and other specific job-related protective gear．

Request reasonable protective equipment if it is not provided automatically．

Know your environment

Ask about workplace hazards and precautions（预防措施）that can help prevent injuries．

Workplace hazards are objects and situations present at your job that could potentially hurt you．Recognize safety hazards such as slippery floors, unsafe ladders, sharp knives, and heavy lifting．

Know the law

Learn about federal and state laws governing employment for teenagers and make you’re your supervisor enforces them．

How many working hours are allowed?

Teenagers （ages 14-15） may total no more than

■3 hours on a school day．

■18 hours in a school week．（A school week is any week in which school attendance is required for any part of four or more days．）

■8 hours on a non-school day．

■40 hours m a non-school week．

What are the responsibilities?

Employers and employees share the responsibility for keeping the workplace safe and healthy．As a teenage worker, you can do your part by taking these steps:

■Follow rules．

■Use safety equipment．

■Keep your work area clean．

■Report all injuries．

■Inform a supervisor if you feel sick．

■Report safety problems．

小题1:If a teenager is asked to work with equipment out of order, he or she should       _．

A．demand enough training

B．refuse to work with the equipment

C．ignore the instructions on the machine

D．ask for necessary protective tools小题2:All of these are examples of workplace hazards EXCEPT        .

A．sharp knives

B．heavy lifting

C．slippery floors

D．steady ladders小题3:According to the passage, which of the following should a teenage worker do in the workplace?

A．Depend on his own in any case．

B．Deal with his injuries himself．

C．Contact a supervisor when feeling uncomfortable．

D．Use any tool in hand．

患者，48岁，1年来 * * 不规则出血。检查：子宫外口呈菜花状。一侧宫旁组织增厚未达盆壁， * * 上1/3已累及，其诊断是宫颈癌哪一期()

A．Ⅰb期

B．Ⅱa期

C．Ⅱb期

D．Ⅲa期

E．Ⅲb期

物业管理活动的基础是( )。

A．物业服务合同

B．物业交易合同

C．物业劳动合同

D．物业委托合同

板体混凝土当联长小于100m时，梁部混凝土的浇筑应在（）完成。

A、初凝前一次

B、终凝前一次

C、初凝前分层浇注