In the area of consumer electronics______.
A.there are strict policies to control energy efficiency
B.there are few policies to control energy efficiency
C.policies are encouraging energy efficiency
D.energy efficiency is the top concern

A.A.there
B.there
C.policies
D.energy

【参考答案】

B
从文章第四段可知，在快速发展的电子产品行业，还缺乏政策来控制能源利用效率。