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【多选题】
类图中的关系——关联关系,正确的有:A.
关联关系靠近被关联元素的部分称为关联端，关联的大部分描述都包含在一组关联端的列表里，每个端用来描述关联中类的对象的参与。
B.
一个类与自身的关联称为自关联。
C.
多重性：放在靠近关联端的部分，表示在关联关系中源端的一个对象可以与目标类的多少个对象之间有关联。
D.
导航性：一个布尔值，用来说明运行时刻是否可能穿越一个关联。
E.
限定符：是二元关联上的属性组成的列表的插槽，其中的属性值用来从整个对象集合里选择一个唯一的关联对象或者关联对象的集合。
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举一反三
【单选题】“To persuade my audience that it is unethical for journalists to invade people’s private lives” is a specific purpose statement for a persuasive speech on a question of__________.
A.
value
B.
fact
C.
policy
D.
opinion
【单选题】What can be inferred from the preview?
A.
During the preview the man will give suggestions to the woman.
B.
The man agrees to take the preview for he knows a lot about T. S. Eliot.
C.
The man has a class, so they will do the preview before dinner.
D.
The preview will take place in the man's room because it's quiet.
【单选题】“To persuade my audience that it is unethical for journalists to invade people’s private lives” is a specific purpose statement for a persuasive speech on a question of__________.
A.
fact
B.
value
C.
policy
D.
opinion
【简答题】Unit 4 Preview.pptx
【单选题】What can be inferred about the preview?
A.
During the preview the man will give suggestions to the woman.
B.
The man agrees to take the preview for he knows a lot about T. S. Eliot.
C.
The man has a class now so they will do the preview before dinner.
D.
The preview will take place in the man's room because it ’s quiet.
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