Judy is going to marry the sailor she in 发布时间:2017-05-13 15:17 │ 来源:www.tikuol.com 题型:选择题 问题: Judy is going to marry the sailor she in Rome last year.A.meetsB.metC.has metD.would meet
题型:选择题 Many students in our class ______ glasses over their eyes in class. [ ]A. put on B. dress C. wear D. get dressed 查看答案
题型:选择题 化学实验基本操作在化学学习和研究中具有重要作用.我们在进行化学实验时,若遇到下列情况,应如何操作?(1)连接玻璃管和胶皮管,玻璃管不容易插入胶皮管内. _____________________ .(2)给试管里的物质加热时,试管外壁有水. ________________________. 查看答案
题型:选择题 _____ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai. [ ]A. To be tiredB. TiredC. Tiring D. Being tired 查看答案
题型:选择题 试回答下列问题:(1)指出下面物质分子或离子的空间构型:PO43-____________________;CS2____________________。(2)有两种活性反应中间体微粒,它们的微粒中均含有1个碳原子和3个氢原子。请依据下面给出的这两种微粒的球棍模型,写出相应的化学式:A:________________;B:________________。(3)按要求写出第2周期非金属元素构成的中性分子的化学式:平面形分子________________,三角锥形分子________________,四面体形分子________________。(4)下列一组微粒中键角由大到小顺序排列为________(用编号填写)①HCN;②SiF4;③SCl2;④CO32-;⑤H3O+ 查看答案