以下是三个字段,其中学号是主键,姓名不允许空值,年龄默认值是20 学号 char(5) primary _____, 姓名 varchar(10) not _____, 年龄 int default _____
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【单选题】In this part, there are sentences like: “To survive, we innovate”, “To improve convenience, we innovate”, “To be more efficient, we innovate”, what kind of figure of speech is this structure?
【单选题】In this part, there are sentences like: “To survive, we innovate”, “To improve convenience, we innovate”, “To be more efficient, we innovate”, what kind of figure of speech is this structure?