【单选题】A market segment is less attractive when ________.
A.
there are few aggressive competitors in the segment
B.
it is difficult for new entrants to enter the segment
C.
it contains powerful suppliers who can control prices
D.
substitute products are unavailable in the segment
E.
buyers in the market segment have weak bargaining powers
【判断题】桥梁伸缩装置目前使用较多的是模数式伸缩装置
【多选题】The market segment profile is ___________.
A.
a description of the typical potential customer in the market segment
B.
a description of the common variables shared by members of market segment
C.
a description of the marketing mix in the market segment
D.
a description of the variables differ between market segments
【简答题】【第二句】华山是秦岭的一部分,秦岭不仅分隔陕南与陕北,也分隔华南与华北。
【判断题】变压器差动保护对主变绕组轻微匝间短路没有保护作用。
【单选题】Point A bisects line segment BC, and point D bisects line segment BA. Which of the following congruencies holds? A.DC=CB
【判断题】变压器差动保护对主变绕组匝间短路没有保护作用。