Diagnosis of drivers who incurred fatal car accidents reveals that among those drivers under 50 with fatal accidents, 5% are diganosed to have P**(一种眼部疾病). This disease affects peripheral vision. However among entire population under 50, only 3% are diagnosed to be infected with P**. Therefore it is the P** disease that has led to drivers' fatal accidents.问削弱 A. Many patients with P** in later stage cannot drive because their sights are seriously hurt. B. Diagnosis of P** requires use of a kind of test. However it's unlikely that people under 50 will take this test. C. Although P** is considered to happen more often among ppl over 50, some younger ppl, who are in their 30s and 40s, are also infected with it. D. Except from impact on peripheral vision, P** does not have impacts on other vision abilities.
有人选A有人选D。我怎么觉得选B?A应该是加强啊,说这种病对视力影响很严重,所以肯定对开车不利。D说这病只影响眼睛余光,不影响其他视力,那也能说明对开车有影响啊,难道余光就没有影响了?B说结果只有3%是因为好多人没参加测试,所以可能有这种实际有这病的人没准比5%还多呢,当然削弱了,因为题说的是出事的人有5%有病,正常人里才3%,所以病对出事有影响,现在都没这比例关系了,当然削弱题目了。 大家怎么看呢? |