会见与会谈中如要互赠礼品,应在()进行。A.迎接客人后 B.合影后 C.致词后 D. 发布时间:2017-07-05 06:13 │ 来源:www.tikuol.com 题型:单项选择题 问题: 会见与会谈中如要互赠礼品,应在()进行。A.迎接客人后B.合影后C.致词后D.送客前
题型:单项选择题 阅读短文,用方框内的单词的适当形式填空。watch learn be have Chinese Dick and Ellen come from America. Now they ___1___ in Tianjin. Every morning they get up very early. Then they go to work by car. They start their work at 8:30. They are very busy. They ___2___ lunch at 12:30. After lunch they work again. They finish their work at 5:30 p.m. In the evening Dick takes Chinese lessons because he wants ___3___ Chinese. Ellen stays at home and ___4___ TV. They like totalk with Chinese people. They often say "Chinese people are very friendly". They like to stay in __5___ and they like to work with Chinese people. 查看答案
题型:单项选择题 铜有两种常见的氧化物:CuO和Cu2O。某学习小组取0.98gCu(OH)2固体加热,有铜的氧化物生成,其质量随温度变化如图1所示。另外,某同学绘制了三条表示金属氧化物与其所含金属元素的质量的关系曲线,如图2所示。则下列分析正确的是 [ ]A.图1中产物A、B的化学式分别为Cu2O和CuOB.图1整个过程中共生成0.26g水C.图2三条曲线中,表示CuO和其中所含Cu元素质量关系的曲线是CD.图1中,A到B过程中有0.01mol电子发生了转移 查看答案