男性，50岁，骑跨在树干上，会阴部受伤，伤后排尿困难及尿潴留，会阴部及阴囊肿胀，淤斑伴剧痛，可能性最大的诊断是（）
A.会阴部软组织损伤
B. * * 球部损伤
C. * * 膜部损伤
D.膀胱破裂
E.骨盆骨折
参考答案：B
解析：根据骑跨伤首先考虑前 * * 损伤，结合伤后排尿困难及尿潴留，会阴部及阴囊肿胀，淤斑伴剧痛，诊断为前 * * 损伤，前 * * 一般为球部损伤，故选B。
There are many kinds of pollution around us, air pollution, soil pollution, noise pollution and light pollution. They are bad our health in many ways. Burning gas, oil and coal creates air pollution. It can cause sore eyes and problems. With the increase of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many in the fields. They destroy the soil. So soil pollution has become serious. Noise pollution can make people . For example, people may lose their hearing if they work in a place for a long time. Too much noise can cause high blood pressure . Working for a long time in strong, changeable light cause some kinds of illnesses. It makes people feel and is especially bad for the eyes. With pollution, our planet will become greener and our health will be better. Let’s be greener people.
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