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问题 改错题

　　下面是某投资咨询公司的一则广告，找出其中三处表意不当或不得体的语句，将其序号和修改后的句子写在横线上。（可增删字词，不得改变原意）

　　本公司欢迎各界朋友前来投资咨询①。我们将不吝赐教②，为您的投资方向、投资策略鼎力相助③，并以最优惠的价格给予您最优质的服务④。愿我们的智慧能助您早日实现自己的愿望⑤。 

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答案

①就投资进行咨询②为您提供信息（提出建议）③当好参谋（提供帮助）

单项选择题

Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (51) on the individual suggest that children engage in criminal behavior (52) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (53) with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status, (54) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, ignoring the fact that children from wealthy homes also commit crimes. The latter may commit crimes (55) lack of adequate parental control. All theories, however, are tentative and are (56) to criticism. Changes in the social structure may indirectly (57) juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment (58) make gainful employment increasingly difficult to obtain. The resulting discontent may in turn lead more youths into criminal behavior. Families have also (59) changes these years. More families consist of one-parent households or two working parents; consequently, children are likely to have less supervision at home (60) was common in the traditional family structure. This lack of parental supervision is thought to be an influence on juvenile crime rates.

57().

A.affect 

B.reduce 

C.check 

D.reflect
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单项选择题

紫外光下显荧光的是（）.

A．小檗碱 

B．利血平 

C．伪麻黄碱 

D．东莨菪碱 

E．烟碱
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