关于顺向型房室折返性心动过速心电图表现的表述，正确的是（）。 A.为节律匀齐的宽QR

综合填空 根据短文大意选择方框内的单词,并用其正确的形式填入空白处,使补全后的短文意思通顺, 语法正确, 结构完整。(5分)

air,  pollution,  easily,  good,  dirty

How about modern life? Life today is much  小题1: . However, there are new problems. One of the biggest ones is  小题2: . Water pollution has made rivers 小题3: . It kills fish and pollutes our drinking water. Noise pollution makes us speak louder and become angry more 小题4: . But 小题5:  pollution is the most serious kind of pollution. It’s bad for all living things in the world.