【简答题】A.at B.on C.in D.over
【判断题】Over time, intra-industry trade has become significantly smaller as a percentage of overall trade.
【简答题】A.of B.over C.in D.with
【单选题】沉淀掩蔽剂与干扰离子生成的沉淀的()要小,否则掩蔽效果不好.
【判断题】自动识别技术归根到底是一种高度自动化的信息数据采集技术。
【简答题】A.with B.for C.in D.over