【正确答案】
B
【答案解析】[解析] 本句意思是“研究表明,男人比女人更容易戒烟”。句中indicate意为“显示,指示”。prove“证明”,如,He has proved his courage in the battle.他已在这场战斗中证明了自己的勇气。show“显示”,如,Her laziness showed in her exam results.她的懒惰从她的考试成绩可以看得出来。find“找到”。conclude“得出结论,达到”,如,Once the price had been agreed, a deal was quickly concluded.价格一经商定,交易很快就达成了。B项show意思上和indicate最接近。