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设有选课表，表中包含的字段有：学号C(3)，课程号C(3)，成绩N(3)。查询每门课程的学生人数，要求显示课程号和学生人数，对应的SQL语句为： SELECT课程号，【14】AS学生人数FROM选课表； GROUPBY【15】
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Within hours of appearing on television to announce the end of conscription, President Jacques Chirac moved quickly to prevent any dissent from within the military establishment. Addressing more than 500 military staff officers at the military academy in Paris yesterday, Mr. Chirac said clearly that he "expected" their loyalty in the work of rebuilding France’s national defense.He understood their "legitimate concerns, questions and emotions" at the reforms, but added. "You must understand that there is not and never has been any rigid model for French defense. Military service has been compulsory for less than a century. Realism required that our armed forces should now be professional."The president’s decision to abolish conscription over a period of six years removes a rite of passage for young Frenchmen that has existed since the Revolution, even though obligatory national service only became law in 1905. As recently as 1993, an opinion poll showed that more than 60% of French people said they feared the abolition of conscription could endanger national security. A poll conducted this month, however, showed that 70% of those asked favored ending of practice, and on the streets and in offices yesterday, the response to Mr. Chirac’s announcement was generally positive.Among people who completed their 10-month period of national service in the last few years or were contemplating the prospect, there was almost universal approval, tempered by a sense that something hard to define--mixing with people from other backgrounds, a formative experience, a process that encouraged national or social cohesion--might be lost.Patrick, who spent his year in the French city of Valance assigning and collecting uniforms, and is now a computer manager, said he was in tears for his first week, and hated most of his time. He thought it was "useless" as a form of military training-- "I only fired a rifle twice"--but, in retrospect, useful for learning how to get on with people and instilling patriotism.As many as 25% of those liable for military service in France somehow avoid it--the percentage is probably much greater in the more educated and higher social classes.According to Geoffroy, a 26-year-old reporter, who spent his time in the navy with the information office in central Paris, the injustice is a good reason for abolishing it. People with money or connections, he said, can get well-paid assignments abroad. "It’s not fair: some do it, some don’t."Several expressed support for the idea of a new socially-oriented voluntary service that would be open to both men and women. But the idea seemed less popular among women. At present, women have the option of voluntary service and a small number choose to take it. When Patrick considered his time in the army "in retrospect", he （）
根据下列文字回答下列问题。据统计，2006年5月份全国基本型乘用车产销21.19万辆和22.13万辆，比2005年同期分别增长1.86%和26.03%；运动型多用途乘用车产销1.43万辆和1.52万辆，降幅不大；交叉型乘用车5月产销6.60万辆和6.85万辆，分别比上月下降14.23%和2.83%；多功能乘用车产销降幅最大，5月产销1.23万辆和1.24万辆。2006年1至5月，基本型乘用车累计产销99.10万辆和96.93万辆，产量同比下降2.73%，销量同比增长1.07%；多功能乘用车累计产销6.11万辆和5.71万辆，同比增长31.26%和 31.54%；运动型多用途乘用车累计产销6.46万辆和6.54万辆，同比下降16.00%和10.25%；交叉型乘用车累计产销36.77万辆和37.41万辆，同比增长6.02%和10.29%。 根据上述材料，以下表述准确的一项是（）。
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 (21) on the individual suggest that children engage in criminal behavior (22) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (23) with others. Theories focusing on the role of society suggest that children commit crimes in (24) to their failure to rise above their socioeconomic status, (25) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, (26) the fact that children from wealthy homes also commit crimes. The latter may commit crimes (27) lack of adequate pa- rental control. All theories, however, are tentative and are (28) to criticism. Changes in the social structure may indirectly (29) juvenile crime rates. For example, changes in the economy that (30) to fewer job opportunities for youth and rising unemployment (31) make gainful employment increasingly difficult to obtain. The resulting discontent may in (32) lead more youths into criminal-behavior. Families have also (33) changes these years. More families consist of one-parent households or two working parents; (34) , children are likely to have less supervision at home (35) was common m the traditional family structure. 27（）
阅读下面的文字，按要求回答问题。西湖雨夜苏轼咏西湖名句：“水光潋滟晴方好，山色空濛雨亦奇”早已脍炙人口。古人所作西湖游记，写雨者亦殊多，然大半为雨朝；雨夕，鲜有写其雨夜者。一九五六年，我于西湖作三日游。一日下午突布云幔，满城皆暗，未几，雨脚东来，若轻纱，若薄雾，罩西子于帘幕之中。但见南北高峰，憧憧浮动；白苏二堤，隐漾若无。少顷雨急，则孤山、湖心亭一带，草痕树影全模糊了。斯时方觉西湖雨景之美，全在清濛淡雅之间。若以拟人法喻之，西湖恰似十七八岁女儿家于幕后含颦，大可人也。此次来杭，正值中雨，蛰伏旅馆中半日，颇感局促。入夜，杭城友人L君邀约夜游，遂擎一雨伞出。时雨阵方敛，转为潇潇，步行至湖滨公园。觅一石凳坐憩。面对雨夜西湖，默不作声，惟闻雨滴击伞，噗噗作响。西湖雨夜，别有一番雅致。湖山楼阁，仿佛被天公泼墨染却，一派漆黑，更不能辨其轮廓。然沿湖半圈灯火，交烁明灭，望似星城。比我往年所写诗句“夜雨秋灯青似萤”，更为壮观了。又过片刻，雨声渐息，周匝天地，绝不似有人迹者。我不免笑问L君：“你不觉得太清静了吗”L君默默良久，方才答道：“此时无声胜有声。”好一个“无声胜有声”!灵机一动，我很快凑成四句：“无声有声，夜雨秋灯。心随何往，数点青萤。”自以为有些哲理意味，当然不敢说是得了禅机。 对文中画线的“湖山楼阁，仿佛被天公泼墨染却，一派漆黑，更不能辨其轮廓”一句所用修辞手法分析最准确的一项是（）。
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