劳动者在职业活动中接触职业性有害因素所直接引起的疾病称为 A.职业性多发病 B.工伤 发布时间:2017-06-21 12:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: 劳动者在职业活动中接触职业性有害因素所直接引起的疾病称为A.职业性多发病B.工伤C.职业病D.职业特征E.工作有关疾病
题型:单项选择题 If you don't know a word, you can _____ it _____ in a dictionary. [ ]A. look...up B. look...down C. look...overD. look...out 查看答案
题型:单项选择题 Not until about 2000 BC________________________done.A.were known of the oldest paintingsB.the oldest of known paintings wereC.the oldest known were paintingD.were the oldest known paintings 查看答案