【单选题】Which of the following is a disadvantage of using secondary data?
A.
Gathering secondary data is costly.
B.
Collecting secondary data is time consuming.
C.
Few sources exist for secondary data.
D.
It is not accurate enough.
【单选题】FR-D720S变频器PID控制中,通过参数P132设定()。
【多选题】Disadvantages of Secondary Data includes:
A.
Secondary data is something that seldom fits in the framework of the marketing research factors.
B.
Accuracy of secondary data is not known.
【判断题】直埋线路敷设中,大旗位置选择在路由转弯点或高坡点,直线段较长时,中间增补2-3面大旗。
【单选题】Secondary data:
A.
is available both internally and outside the firm.
B.
may not be specific enough to answer the question under consideration.
C.
is often all that is needed to solve a problem.
D.
should be considered before primary data is collected.
【单选题】Secondary data is:
A.
Data that does not provide any information
B.
Data collected for another purpose
C.
Data collected specifically for the purpose of the survey being undertaken
D.
Data collected by post or telephone, not by personal interview
【判断题】Secondary data are data of secondary importance.