基于不同的分类标准，风险按照风险来源可分为( )。 A．自然风险 B．纯风险 C．

乳牙髓腔消毒药物多选用（）。

A.甲醛甲酚

B.木榴油

C.乙醇

D.樟脑酚

E.麝香草酚

第二部分阅读理解（共20小题：每小题2分，满分40分）

阅读下列短文，从每题所给的四个选项（A、B、C、 D和E）中，选出最佳选项，并在答题卡上将该项涂黑。

Scott Langteau has this message for kids: Spend less time playing video games．

It’s a message that many a mom and dad have tried to impress upon many a youngster （and some not-so-youngsters） who spend perhaps a bit too much time with game controllers in hand．

But the 40-year-old Langteau isn’t a parent．He’s experienced at video games — one who played producer on three “Medal of Honor” games and co-founded his own game development company．

Langteau has just published a children’s book called “Sofa Boy,” which tells the story of a kid who spends too much time sitting on the couch with controller held in hand and the rather terrible consequences that follow．

It’s a fairy tale plucked straight from Langteau's own experiences as a lad with a fondness for video games and his own bouts with a bit of game addiction．But first, Langteau would like to make one thing clear: “I’m not saying that you shouldn’t play video games．I think video games are great, I think they do great things for kids．Instead, Langteau says his book is all about a little something called “moderation．（克制）”

_“It’s_about_being_well_rounded,” he says．“Just like with anything else, we all need to make sure that there’s a variety in what we do．”

Video gamers can be rather bad-tempered when it comes to accepting criticism about their favorite entertainment．And understandably so．After all, most people who go around talking about the dangers of playing video games tend to be outsiders — people who don’t play video games and certainly don’t understand that they can be a valuable and healthy form of entertainment．

But Langteau and “Sofa Boy” seem to be in a unique position to deliver a message of gaming moderation that the young game-savvy masses might actually listen to．After all, this is a

man who understands what it means to be a kid with a passion for games．His early experience has taught him a lesson．

1．Scott Langteau published “Sofa Boy” to_____________．

A．share his great skills on games                    

B．warn kids against game addiction

C．tell about his fairy tale as a kid             

D．deliver a message for games

2．We can learn from the passage that____________．

A．Langteau advises the young to play games within limits

B．Langteau advises the young not to play games

C．playing video games ruins the future of kids

D．playing video games is of no benefit to kids

3．By saying “It’s about being well rounded” Langteau thinks____________．20090506

A．games do great things for kids                

B．gamers are usually fat and round

C．games should be viewed from all sides        

D．gamers are to blame for their behaviors

4．What topic will be discussed in the following paragraph?

A．His idea to create “Sofa Boy”．

B．His great achievement in games as a kid．

C．His hard times to set up his game company．

D．His enthusiasm for games when he was a small boy．

阅读下列材料：     

九一八事变前，日本本土相当于中国的二十几分之一，人口相当于中国的七分之一，但却拥有较为强大的经济和军事力量。那时，日本工业产值在工农业总产值中占了38.20/0，年产钢229.2万吨；军队数量虽少于中国，但武器装备却占绝对优势。而中国经济十分落后，小农经济占国民经济的90%以上，工业经济不到10%，钢年产量仅1.5吨，军队装备落后，缺乏训练。加上蒋介石推行 * * 内战政策，政治腐败，把国家搞得四分五裂。   

请回答：   

（1）日本达样的小国为什么敢于欺负中国这样的大国？   

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（2）请你简单介绍九一八事变。（注：包括时间、地点、经过、结果、影响等）   

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（3）九一八事变留给我们的历史教训是什么？ 

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喜戴银饰是傣族妇女的天性，盛装的银饰常常有数公斤重，素有“花衣银装赛天仙”的美称。( )

马齿苋清热解毒，凉血止痢，腐蚀赘疣。