What is the secret she discovered to tone speaking success?
A. Listen to audio files of initials, finals and tones every day.
B. Learn pronunciation and vocabulary in the way children learn English.
C. Talk with children, not adults.
D. Learn Chinese pop songs.
查看答案
Which of the following is not true according to the passage?
A. She couldn’t recognize the tones even though the words are written down in Pinyin.
B. táng and tāng sound the same to her.
C. She teaches kids English by means of rhymes and songs.
D. She can impress Chinese friends at KTV with Chinese pop songs.
用二维表结构表示实体和实体间关系的数据模型为________。
A. 关系模型
B. 层次模型
C. 网状模型
D. 面向对象模型
最常用的一种基本数据模型是关系数据模型，它采用________表示。
A. 树
B. 网络
C. 图
D. 二维表
一个项目具有一个项目主管，一个项目主管可以管理多个项目，则实体“项目主管”和实体“项目”之间属于________联系。
A. 一对一
B. 一对多
C. 多对一
D. 多对多
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