根据下列句子及所给汉语注释，在横线上写出空缺处各单词的正确形式。

66．He was employed as a _______(图书管理员) in the company．

67．Have you ________(处理) with the  letters received yesterday?

68．Many economists use the Davos forum as a______(平台) for their financial views．

69．Seeing the scene, he left_______(失望)．

70．There are not enough ____(柜橱)for all the students in the school．

71．He's still______（犹豫） about joining in the expedition．

72．She knitted a pair of_______(手套) herself．

73．It is useful to ____(开发) oil reserves, water power, solar energy because we are badly in need of them．

74．We are busy now and we can’t spare a _______(两周) holiday．

75．Each country celebrates April Fool’s Day_________．(不同)

梅毒反应素是指（）

A.类心磷脂抗原

B.抗梅毒螺旋体抗体

C.梅毒螺旋体特异性抗原

D.梅毒螺旋体非特异性抗原

E.抗心脂质抗体