第1题
A. so three filing cabinet drawers are needed
B. we need to add one air conditioner
C. Buying new equipment for the new office
D. and then we need a new photocopier
E. Melinda
F. The Financial Department
G. Dec.23 , 2015
Memo
From:____________1_____________
To:______________2___________
Subject:_________3_______________
Date:___________4_____________
Last week we moved into the new office. Unfortunately, the former office equipment was not enough for the new requirements. The following problems are outstanding:
? The weather is very cold,______5___________________
? There are so many files,________6________________
? Some important files need to be kept,_________7________________
I would be grateful to know when you will be able to approve the equipment buying.
第2题
第3题
A. P 1(l) = P 2(0) = P ,在P 处P l (l) 、P 2(0)的切矢量方向相同,大小相等,则P 1(t) 、P 2(t) 在??????????=111010002TP 处具有G1连续
B. P1(l) = P2(0) = P ,在P 处P l(l)、P2(0)的切矢量方向相同,大小相等,则P1(t) 、P2(t) 在
P 处具有C l连续
C. 若保持原全部顶点的位置不变,只是把次序颠倒过来,则新的Bezier 曲线形状不变,但方向相反
D. 曲线的位置和形状只与特征多边形的顶点的位置有关,它不依赖坐标系的选择
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