答案是1.1/100+1/300>1/1001/101+1/299>1/100……………………1/199+1/201>1/100得1/100+1/101+1/102+1/103+1/104+...+1/299+1/300>100*1/100+1/200=1+1/200>1又有1/100+1/101+1/102+1/103+1/104+...+1/199...