【正确答案】:
AS HISTORICAL EXPERIENCE HAS PROVED, OPENING UP LEADS TO PROGRESS WHILE ISOLATION INEVITABLY RESULTS IN BACKWARDNESS.
【题目解析】:本题考查对照结构的翻译。开放和封闭相对,进步和落后相对,两个分句相反,所以可以用连词while连接。 historical experience:历史经验;prove:证明;lead to:导致;isolation:封闭,孤立;inevitably:不可避免地,必然;backwardness:落后。