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【判断题】
在Excel中，函数包括“=”、函数名和变量。()A.
正确
B.
错误
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【单选题】If we find materials available only in faraway places, it can be inferred that
A.
these materials were very popular at that time and sold in many places
B.
these materials were very easy to produce and were made locally
C.
people in this place were hunting tribes and traveled to distant places
D.
these materials were probably got by the means of traveling or trading
【简答题】给定的企业员工管理数据库 db_yggl 中包括部门表 tb_dept 和职工表 tb_emp 。 tb_dept(deptno,deptname,manager,office,telephone), 各字段合义依次为 : 部门号、部门名称、部门负责人姓名、办公地点、电话。 tb_emp(eno,name,,birth,education,worktime,title,salary,tele...
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