FHow is cancer treated?
27Cancer occurs when cells m the body divide without 28Gene alterations may be caused by
29Treatment for cancer may also bring about some 30Cancer patients may differ in their Aprescription medicines Bcontrol or order Ctolerance for pain Dvarious factors E normal genes
Fdifferent genesside effects
第4部分：阅读理解（第31～45题，每题3分，共45分）
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。 第一篇
Youth Emancipation in Spain
The Spanish Government is so worried about the number of young adults still livingwith their parents that it has decided to help them leave the nest.
Around 55 percent of people aged 18-34 inSpain still sleep in their parents' homes,says the latest report from the country's state-run Institute of Youth. To coax (劝诱) young people from their homes, the Institute started a \解放)\findingrooms and jobs.
Economists blame young people's family dependence on the precarious (不稳定的)labor market and increasing housing prices. Housing prices have risen 17 percent ayear since 2000.
Cultural reasons also contribute to the problem, say sociologists (社会学家). Familyties in south Europe - Italy, Portugal and Greece - are stronger than those in middle andnorth Europe, said Spanish sociologist Almudena Moreno Minguez in her report \
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In Spain - especially in the countryside, it is not uncommon to find entire groups ofaunts, uncles, cousins, nieces and nephews (外甥/侄子) all living on the same street.They regularly get together for Sunday dinner.
Parents' tolerance is another factor. Spanish parents accept late-night partying andare wary of setting bedtime rules.
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