What has been done traditionally better in America ______. 参考答案:producing competition/scientists 答案解析:[解析] 在谈到美国的竞争环境和人才培养时,有这样的表达:“But traditionally,over the decades,the United States has done better。”
第31题: [单项选择]Care should be taken to decrease the length of time that one is ______loud continuous noise. A. subjected to B. filled with C. associated with D. attached to 参考答案:A 答案解析:be subjected to遭受,受到,be filled with 充满了,填满了。be associated with 与.联系在一起。be attached to附属于,依恋于。