完形填空。 Here's a new warning from health e

题型:完形填空

问题:

完形填空。
     Here's a new warning from health experts: Sitting is deadly. Scientists are increasingly warning that sitting
for prolonged periods-even if you also exercise regularly-could be    1    for your health. And it doesn't matter
where the sitting takes place-at the office, at school, in the car or before a computer or TV-just the overall
number of hours it    2   .
     Research is preliminary, but several studies    3    people who spend most of their days sitting are more likely
to be fat, have a heart attack or even die.
     In an editorial    4    this week in the British Journal of Sports Medicine, Elin Ekblom-Bak of the Swedish
School of Sport and Health Sciences suggested that authorities rethink how they define    5    activity to highlight
the dangers of sitting.
     While health officials have issued guidelines    6    minimum amounts of physical activity, they haven't
suggested people try to limit how much time they spend in a seated    7   .
     "After four hours of sitting, the body starts to send    8    signals," Ekblom-Bak said. She explained that genes
regulating the amount of glucose and fat in the    9    start to shut down.
     Even for people who   10  , spending long stretches of time sitting at a desk is still harmful. Tim Armstrong,
a physical activity expert at the World Health Organization, said people who exercise every day-  11   still spend
a lot of time sitting-might get more benefit if that exercise were spread across the day,   12   in a single bout.
     That wasn't   13   news for Aytekin Can, 31, who works at a London financial company, and spends most
of his days sitting   14   a computer. Several evenings a week, Can also teaches jiu jitsu, a Japanese martial art 
  15    wrestling, and also does Thai boxing.
     "I'm sure there are some detrimental   16   of staying still for too long, but I hope that being   17   when I can
helps," he said. "I wouldn't want to think the sitting could be   18   dangerous."
     Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years,
researchers found people who sat   19   had a higher death risk, independently of whether or not they exercised.
     Figures from a US survey in 2003-2004 found Americans spend more than half their time sitting, from
working at their desks to sitting in cars.
     Experts said more research is needed to   20   just how much sitting is dangerous, and what might be
possible to offset those effects.
( )1.A.bad         
( )2.A.does       
( )3.A.advise     
( )4.A.thrown     
( )5.A.biological  
( )6.A.commending  
( )7.A.stand       
( )8.A.harmful     
( )9.A.head       
( )10.A.sleep       
( )11.A.and         
( )12.A.rather than  
( )13.A.bad         
( )14.A.behind     
( )15.A.referring   
( )16.A.effects     
( )17.A.inactive   
( )18.A.such       
( )19.A.less       
( )20.A.leave out  
B.good      
B.occurs    
B.talk      
B.caught    
B.physical  
B.mending  
B.state    
B.careful  
B.arm      
B.rest     
B.so        
B.other than    
B.harmful  
B.back      
B.involving 
B.prefects  
B.active    
B.little    
B.fewer    
B.bring out 
C.mean         
C.matches      
C.suggest     
C.seen         
C.psychological
C.recommending  
C.post         
C.wonderful   
C.body         
C.walk         
C.but         
C.more than    
C.disadvantage 
C.in front of  
C.taking       
C.affects     
C.interactive  
C.lot         
C.more         
C.hold out     
D.dead          
D.dies            
D.say         
D.published     
D.logical     
D.communicating 
D.position        
D.skillful    
D.foot          
D.exercise        
D.then        
D.less than                    
D.welcome       
D.forward     
D.bringing        
D.offers        
D.positive      
D.that        
D.further       
D.figure out    
考点:健康环保类阅读
题型:完形填空
在极坐标系中,曲线ρ=4sin(θ-
π
4
)
过极点的对称轴为______.
题型:完形填空

消食导滞法中应用山楂主要是()

A.消肉食油腻

B.化谷食积滞

C.消麦面之积

D.消化乳积

E.理气化积

题型:完形填空

假设一个沿一定方向运动的光子和一个静止的自由电子相互碰撞以后,电子向一个方向运动,光子沿另一方向散射出去,则这个散射光子跟原来的光子相比

A.频率变大

B.速度变小

C.光子能量变大

D.波长变长

题型:完形填空

男性,23岁。3年来多次于夜晚饱餐后次日清晨醒来发现四肢不能活动,大小便正常,吞咽和呼吸正常,数日后恢复,已发作5次。今晨醒来又出现四肢不能运动。体检:颅神经正常,四肢肌力均为1级,腱反射低,无病理反射,感觉正常()。

A.脱水药

B.抗胆碱酯酶药物

C.免疫抑制剂

D.钾盐

E.手术治疗

题型:完形填空

下列脊椎病变,除哪项外,脊椎叩痛常为阳性()

A.棘间韧带损伤

B.骨折

C.骨质增生

D.椎间盘突出

E.脊椎结核

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