• 2021-04-14
    Primary customer research is: 初期客户研究是指:
  • Speaking directly with customers 直接和客户交谈

    内容

    • 0

      What are two types of research? A: One research B: Primary research C: Two research D: Secondary research

    • 1

      Primary research method can include( ).

    • 2

      What are the two basic ways of research in scientific sense? A: Primary research B: Natural research C: Social research D: Secondary research

    • 3

      假设需要为表 customer 添加主键约束,主键列为 customer_id,可以使用如下( )方式。 A: Alter table CUSTOMER ADD pk_customer primary key (customer_id); B: Altertable CUSTOMER ADD constraint pk_customer primary key (customer_id); C: Alter table CUSTOMER ADD constraint pk_customer (customer_id); D: Alter table CUSTOMER ADD primary key (customer_id);

    • 4

      Empirical research is also called primary research.