问题 问答题 简答题

什么是可吸入颗粒物?

答案

参考答案:

通常把粒径在10微米以下的漂浮在空气中的固态和液态颗粒物称为可吸入颗粒物(PM10)。可吸入颗粒物是城区环境空气首要污染因子之一。

写作题
假如你是李华,一名刚刚进入高三的学生。2014年高考在即,面对压力,想和父母说说心里话,请你用英文在你的博客上以书信的形式表达出来。内容要点如下:
 
知心话
对父母的感谢
感谢他们倾注关爱,关心鼓励
 
对父母的希望
1. 和他们多交流,使自己保持良好状态
2. 创造条件,给自己提供实时帮助
学习打算
考生自拟(至少写两点)
注意:
短文须包括以上所有内容要点。
词数100左右;开头和结尾已给出,不计入总词数。
Dear Mom and Dad,
The annual college entrance examination is around the corner. On this special occasion, how I wish I could
have a heart-to-heart talk with you.                                                            
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
Yours ever
Li Hua
填空题