下列毒物能导致雷诺综合征的是() A.苯胺 B.氯乙烯 C.砷 D.甲苯 E.有机磷 发布时间:2017-09-07 15:03 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 下列毒物能导致雷诺综合征的是()A.苯胺B.氯乙烯C.砷D.甲苯E.有机磷农药
题型:单项选择题 A1型题 根据汉语填写句中空白处所缺单词。1. She didn't ______ (注意到) that she was in trouble. 2. Tom was so ______ (害怕) that he didn't know what to do. 3. Which ______ (方向) is the bus coming?4. Don't ______ (踩踏) the grass. We should protect it. 5. I bought a new digital ______ (相机) last year. 查看答案
题型:单项选择题 A1型题 小明的父亲在车站候车时,看到一人从旁边地面上捡到一条金链.那人把小明的父亲拉到一旁神秘地说:“这条金链值3000元,见者有份,要分一份给你,但我没带钱,你给我1000元,金链给你.”…小明的父亲高兴地把金链带回家.小明提出“金链是真的吗?”的猜想.请你根据所学物理知识设计实验方案进行验证.你的实验方案是:______.你需要的实验器材是:______. 查看答案