问题 选择题

下列过程或现象与盐类水解无关的是 [ ]

A.纯碱溶液去油污

B.加热稀醋酸溶液其pH 稍有减小

C.小苏打溶液与AlCl3溶液混合产生气体和沉淀

D.浓的硫化钠溶液有臭味

答案

答案:B

单项选择题
写作题

假设你是李华,你的美国老师Miss Morgan要求你们明天下午去听一个美国历史的讲座。你因故不能参加。请你根据以下要点,写一封短信向Miss Morgan请假。

内容要点:

*表示歉意  

*理由:去机场接人  

*询问:是否有录音,以便补听讲座

注意:

1. 词数:100左右  

2. 可根据内容要点适当增加细节,以使行文连贯

Dear Miss Morgan,

I am so sorry                                                                                 

                                                                                           

                                                                                           

                                                                                           

                                                                                           

                                                                                           

                                                                                           

                                                                                           

                   

Yours sincerely

Li Hua