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【单选题】

Internet data shows that American younger s have become the primary group mad about altering their personal appearance. Once the realm of the well-to-do female 41 her fifties, plastic surgery has become the attraction of the least rich 42 of younger Internet users.
Search data 43 this phenomenon. One of the most popular sites visited from the search term "plastic surgery" is the 44 site of the American Society of Plastic Surgeons. Over 25% of visitors to the site fell 45 the 18- to 24-year-old demographic (人口结构的)—that"s up from 19.6% two years 46 .
Looking at other health related sites visited by 18- to 24-year-olds, 47 just how mad this age group is about appearance. 48 their older counterparts who visit sites related to 49 and keeping healthy, younger Internet users 50 to sites that dwell on personal appearance, such as those 51 on bodybuilding, weight loss and skincare. And 52 plastic surgery.
But if we track the trend in searches on topics such as "breast implants" or "plastic surgery," there has been a steep 53 in all plastic surgery topics over the last year. What"s 54 this downturn It may very well be related to the failing U.S. economy and the 55 income group of visitors to cosmetic surgery sites—U.S, households that 56 less than $30,000 per year. In fact, if we look at the search patterns around popular surgeries, over the last year the term "cost" is the most 57 appearing qualifier (限定词). We see more searches such as "breast implant cost" and "plastic surgery cost". 58 older demographics continue to search for information on procedures such as face-lifts, it"s the younger Internet users who in tough 59 times are focusing on improving their outer beauty, although at a(n) 60 price.

A.
ordinarily
B.
commonly
C.
hardly
D.
generally
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题目标签:人口结构结构
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参考解析:
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【单选题】能分泌胆汁的结构

A.
胆囊
B.
胆小管
C.
肝细胞
D.
小叶间胆管

【单选题】具有以下结构的药物是

A.
盐酸普鲁卡因
B.
盐酸可卡因
C.
盐酸丁卡因
D.
盐酸可待因
E.
盐酸利多卡因

【单选题】不属于肱骨的结构是

A.
肱骨大结节
B.
外科颈
C.
肱骨滑车
D.
冠突
E.
内上髁

【单选题】不包含省略现象的结构是

A.
我昨天买一自行车
B.
墙上挂一电视
C.
酱油和醋都打五分钱的
D.
打外边进来一老头儿

【单选题】人口结构不包括

A.
.群众结构
B.
年龄结构
C.
性别结构
D.
职业结构

【单选题】β片层结构:

A.
只存在于α角蛋白中
B.
只有反平行结构,没有平行式结构
C.
α螺旋是右手螺旋,β片层是左手螺旋
D.
主链骨架呈锯齿形成的片层
E.
肽平面的二面角与α螺旋的相同

【多选题】戏剧结构可分为( )。

A.
开放式
B.
正叙式
C.
封闭式
D.
倒叙式
E.
夹叙夹议式

【单选题】肌节的结构包括

A.
I 带+A 带
B.
1/2 A 带+I 带+1/2 A 带
C.
1/2 I 带+A 带+1/2 I 带
D.
1/2I带+1/2A带