静止龋产生的条件是由于病变环境改变使（）

[问答题]Passage 2　　● Read the memo and the anniversary activities below.　　● Complete the form on the following page.　　● Write a word, phrase or number in spaces 41-45 on your book.　　Citroen Ltd.　　N0.45 Ten Mile Road ES, Chaoyang District, Beijing, 100028　　Memo　　To: P.K.Kirkman　　From: Richard Patterson　　Date: 0ctober 9, 1998　　Message:　　Kirkman,　　Please send this announcement to BTV-2.I think it will help our business. Thank you.　　Citroen Ltd.　　N0.45 Ten Mile Road ES, Chaoyang District, Beijing, 100028　　Dear Sir or Madam,　　Citroen Ltd. will be turning 79 years old on October 23, making us the oldest car dealership in Beijing. We will be staging a 2-day celebration.　　On October 23, we will kick off anniversary with displaying of antique autos and carnival rides for the customers. On October 24, we will have a picnic open to the public. We think that our anniversary event would make a fine spot on your “Special Focus” segment on the l2 o'clock news.　　I have enclosed a flyer describing the complete festivities. Thank you for helping us celebrate our anniversary.Sincerely yours,Richard PattersonPresidentMAE: fswContact: Tel: (010)65768835Fax: 2013785649　　Celebration Activities　　The media mentioned: 　　　　　　　　 　(41)______　　Company: 　　　　　　　　　　　　　　 　(42)______　　How old is the company? 　　　　　　　　(43)______　　When will the news be broadcasted?　　　(44)______　　Activities on Oct.23: 　　　　　　　　　(45)______

[单选题]病机属（　　）。

[填空题]在先锋小说家中，最热衷于死亡叙述的作家是（）。

[单选题]下列各项为口角炎常见临床表现，除了（）

[问答题]简述蛋白质的变性与复性

[单选题]不宜与牙硝配伍的是（）

[单选题]混凝土入仓铺料采用斜层浇筑法时，斜层坡度不超过（）

[单选题]超过年度总额所购外汇，不得（）。

[单选题]转炉炼钢的最大出钢量应为公称容量的（）倍。

[单选题]某市计划2年内建设一大型商场、项目总投资为4000万元，从投资开始到投资全部收回预期年限为12年，则该项目的预期投资收益率为()。