填空题

A—answer phone
B—burglar alarm
C—date-stamp
D—electronic display material
E—headed paper
F—office information system
G—shorthand
H—annual report
I——registered delivery
J——office automation
K—time sheet
L—computer package
M—handbook
N—waste basket
O—card-index
P—blueprint
51．( )年度报告 ( )电子显示资料
52．( )计算机程序包 ( )邮戳日期
53．( )办公自动化 ( )废纸篓
54．( )印有信头的信纸 ( )录音电话
55．( )挂号邮件 ( )办公室信息系统