题目内容

设有一个SPJ数据库，包括S、P、J和SPJ4个关系模式：S(SNO,SNAME,STATUS,CITY)P(PNO,PNAME,COLOR,WEIGHT)J(JNO,JNAME,CITY)SPJ(SNO,PNO,JNO,QTY)求供应工程J1零件的供应商号码SNO

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B Listen to the dialogue again, and then choose the best answer.1. Which table was the man sitting at yesterday?

A round table.
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