Theseclothes______ memorethan800yuan.[ ]

Object-oriented analysis(OOA)is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is (71) . It determines how the various results are computed by the product and presents this information in the form of a (72) and associated scenarios. The second is (73) ，which determines the classes and their attributes. Then determine the interrelationships and interaction among the classes. The last step is (74) , which determines the actions performed by or to each class or subclass and presents this information in the form of (75) .

72（）

A．collaboration diagram

B．sequence diagram

C．use-case diagram

D．activity diagram

为方便用户知道邮箱的留言情况，避免无信息时用户访问系统去提取信息，语音邮箱系统通常设有（）功能。

简述古代希腊在教育上的主要成果。

乳牙慢性根尖周炎瘘管常出现的位置是

A．颊侧根分叉粘膜

B．舌侧粘膜

C．龈沟内

D．根尖区粘膜

E．近中根尖粘膜

当编辑图像时使用减淡工具可以达到何种目的（）

A.使图像中某些区域变暗

B.删除图像中的某些像素

C.使图像中某些区域变亮

D.使图像中某些区域的饱和度增加