问题 单项选择题

钻井液中加入粘土粉、栲胶粉()。

A、只提高塑性粘度

B、只提高结构粘度

C、都提高

D、都降低

答案

参考答案:C

选择题
写作题

假定你叫张强,是北京阳光中学(Beijing Sunshine Secondary Schoo1)的一名初二学生。上星期天你从报上看到观鸟俱乐部(the Birdwatching Club)的招聘广告。请你写封简短的应聘信,介绍自己的情况(见下表),表示愿意为俱乐部做一些工作,并请俱乐部负责人考虑并尽早予以答复。

注意:1.信的开头和结尾已为你写好,不计入总词数。

2.词数80左右。

Dear sir,

I read your ad in the newspaper last Sunday.Now I’m writing to tell you I’d like to become a member of the Birdwatching Club.

                                                                                

                                                                              

                                                                              

                                                                              

                                                                              

                                                                              

                                                                              

                                                                              

Best wishes,

Yours sincerely,

Zhang Qiang