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The passage suggests that the fact the 'only one community cancer cluster had ever been traced to an environmental cause' (ParA.3)is most likely due to the
A.methodological difficulties in analyzing community cancer clusters
B.reluctance of epidemiologists to investigate environmental factors in cancer
C.lack of credibility of citizen activists in claiming to have identified cancer agents
D.effectiveness of regulations restricting the use of carcinogens in residential areas

A.methodological
B.reluctance
C.lack
D.effectiveness

【参考答案】

A
解析：A意为：分析整个社会患癌症的群体方法上的困难。第三段指出，虽然几种致癌因素是通过这样的(指第二段提到的......

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A proverb allegedly from ancient China was widely spread in the West: 'If you want to be happy for a few hours, go to get drunk; if you want a lifetime happiness, take up gardening. ' The reason for the last option is this: Gardening is not only useful, but it helps you to identify yourself with nature, and thus brings you new joy each day besides improving your health.A research of a US university that I've read gives a definition of happiness as what makes a person feel comfortably pleaseD.To put it specifically, happiness is an active state of mind where one thinks one's life is meaningful, satisfactory and comfortablE.This should be something lasting rather than transitory.Lots of people regard it the happiest to be at leisurE.But according to a study, it is not a person with plenty of leisure but one at work that feels happy, especially those busy with work having little time for leisurE.Happiness does not spell gains one is after but a desire to harvest what one is seeking for. People often do not cherish what they already have but yearn for what they cannot get. That is somewhat like a man indulging in fond dreams of numerous lovers while reluctant to settle down with the woman beside him.Happiness is a game balancing between two ends—what one has and what one wishes for, E.g. one's dream and the possibility to realize it. The study comes to this conclusion: A happy man is one who aims high but never forgets his actual situation; one who meets challenges that tap his ability and potentiality; one who is proud of his achievements and the recognition given to him. He has self-respect and self-confidence; treasures his own identity and loves freedom. He is sociable and enjoys wide-range communication with others; he is helpful and ready to accept assistancE.He knows he is able to endure sufferings and frustrations; he is sensible enough to get fun from daily chores. He is a man capable of love and passion.According to the passage, gardening can bring lifelong happiness because______.A.gardening is a profitable businessB.it can strengthen gardener's ability to remake natureC.gardener can enjoy very happy marriageD.gardener can build good relationship with nature
A.B.
Lots
C.
D.
According
E.
A.gardening
F.it
G.gardener
H.gardener
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根据以下资料，回答106-110题。固定资产投资稳定增长。2006年江苏省完成全社会固定资产投资10063.65亿元，比上年增长20.3%。其中，城镇固定资产投资完成7473.7亿元，增长20.2%；农村固定资产投资 2589.95亿元，增长20.7%。在全社会投资中，国有及国有控股投资2528.37亿元，下降0.3%；外商、港澳台经济投资1727.058亿元，增长16%；民间投资5807.7亿元，增长33.8%，其中私营个体经济投资3110.67亿元，增长36.6%。民间投资占全社会投资的比重达57.7%，比上年提高 5.8个百分点。投资结构进一步调优。在城镇固定资产投资中，第一产业投资15.45亿元，比上年增长 21.9%；第二产业投资3439.08亿元，增长22.3%；第三产业投资4019.17亿元，增长18.4%。工业投资3391.17亿元，增长22.2%；其中通信设备、计算机及其他电子设备制造业472.14亿元，交通运输设备制造业197.71亿元，通用设备制造业投资248.59亿元，分别增长50.4%、40.7%和56.2%。第三产业投资中，房地产开发投资1901.01亿元，增长23%；交通运输仓储和邮政业投资548.51亿元，增长2.5%；水利、环境和公共设施管理业投资673.25亿元，增长17%；教育投资139.96亿元，增长5.6%；卫生、社会保障和社会福利业投资56.22亿元，增长39.2%。重点调控行业投资明显下降，城镇投资中钢铁工业完成投资130.71亿元，下降17.5%；水泥工业投资24.76亿元，下降13.2%；纺织工业投资273.87亿元，增长31.5%，增幅下降15.6个百分点。2005年江苏省全社会固定资产投资总额为( )。A.8020.73亿元B.8365.46亿元C.10063.65亿元D.12106.57亿元
A.65亿元，比上年增长20.3%。其中，城镇固定资产投资完成7473.7亿元，增长20.2%；农村固定资产投资
B.95亿元，增长20.7%。在全社会投资中，国有及国有控股投资2528.37亿元，下降0.3%；外商、港澳台经济投资1727.058亿元，增长16%；民间投资5807.7亿元，增长33.8%，其中私营个体经济投资3110.67亿元，增长36.6%。民间投资占全社会投资的比重达57.7%，比上年提高
C.8个百分点。
D.45亿元，比上年增长
E.9%；第二产业投资3439.08亿元，增长22.3%；第三产业投资4019.17亿元，增长18.4%。工业投资3391.17亿元，增长22.2%；其中通信设备、计算机及其他电子设备制造业472.14亿元，交通运输设备制造业197.71亿元，通用设备制造业投资248.59亿元，分别增长50.4%、40.7%和56.2%。第三产业投资中，房地产开发投资1901.01亿元，增长23%；交通运输仓储和邮政业投资548.51亿元，增长2.5%；水利、环境和公共设施管理业投资673.25亿元，增长17%；教育投资139.96亿元，增长5.6%；卫生、社会保障和社会福利业投资56.22亿元，增长39.2%。重点调控行业投资明显下降，城镇投资中钢铁工业完成投资130.71亿元，下降17.5%；水泥工业投资24.76亿元，下降13.2%；纺织工业投资273.87亿元，增长31.5%，增幅下降15.6个百分点。
2005年江苏省全社会固定资产投资总额为(
F.8020.73亿元
B.8365.46亿元
C.10063.65亿元
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