ICIC（小区间干扰协调）技术的缺点（）
A.干扰水平的降低，
B.牺牲系统容量为代价，
C.降低频谱效率，
D.降低频谱带宽
参考答案：A, B
Eagle Father was so__________ with his son that he kept the four-year-old son running in the snow without clothes.
A．pleased
B．sorry
C．careful
D．strict
绿色消费有什么由来？
