企业以年龄、性别和收入等细分市场,依据的是()。
A.利益
B.产品种类
C.地理因素
D.人口统计因素
参考答案:D
.若一个菱形的边长为2,则这个菱形两条对角线的平方和为 ( )
A.16
B.8
C.4
D.1
________pollution control measures are expensive, many industries hesitate to adopt them.
A.Although
B.However
C.Because
D.On account of