问题 单项选择题

消音器主要的主要作用是()。

A、消除液体排放时的噪音

B、消除气体流动时的噪音

C、消除蒸汽排放时产生的噪音

D、消除蒸汽流动时产生的噪音

答案

参考答案:B

写作题

书面表达。

     在今年的“地球一小时(Earth Hour)”活动中,中国很多城市的人们都自觉熄灯一小时,体现

了低碳生活的新理念。假定你是CCTV9的记者,请你根据以下采访信息用英语写一篇80个词左右的

新闻稿。注意:部分内容已为你写好,不计入总词数。

     Thank you for joining CCTV's Around China show! Now it's 8:45 p.m. during the famous Earth Hour.

People in many cities have turned off their lights and are having a very special time In Shanghai,               

                                                                                                                                                       

                                                                                                                                                       

     Many people share with us their plans.                                                                                            

                                                                                                                                                        

                                                                                                                                                        

单项选择题