For many years, people thought the 41 of smoking were 42 to smokers. But new studies have found that smoke from cigarettes can be 43 to non-smokers too. In December 1987, a U.S. Government report 44 that non-smokers could risk getting lung cancer from 45 in other people's cigarette smoke. Another study looked at non-smoking 46 athletes who had smoking parents or friends. Being 47 cigarette smoke hurt the athletes' lungs, and made them 48 more than athletes who did not have smokers close 49 , the study said. Studies like these have promoted the banning of smoking in 50 places. (AB) activated (AC) cough (AD) breathing (AE) adopting (BC) indicated (BD) symptoms (BE) near (CD) harmful (CE) damages (DE) limited (ABC) to (ABD) by (ABE) weak (BCD) teenage (BCE) public 【題組】46.
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