问题 选择题

有四种物质的溶液:①Ba(OH)2、②Na2SO4、③HNO3、④FeCl3,不用其他试剂就可将它们逐一鉴别出来,其鉴别顺序是    [ ]

A.④③②①    

B.④①②③    

C.①③④②    

D.①④②③

答案

答案:B

写作题

书面表达。

    美国学生Sam 最近又来到了北京,去了王府井,发现这里发生了巨大的变化。请你以Sam身份给他

父母写一封信,介绍王府井发生的变化。字数80左右,信的开头及结尾已给出。

     提示词:1. happy, visit, again 2. change, take place 3. Wangfujing Street, building, shop, market

                   4. flower, poster (宣传画), put, for, the Olympics

Dear Mum and Dad, 

                                                                                                                                                          

                                                                                                                                                          

                                                                                                                                                          

                                                                                                                                                 Yours,

                                                                                                                                                 Sam

单项选择题