均衡技术和分集技术分别主要解决数字信号在无线信道中传播的什么方面问题？
参考答案：
均衡技术：减小码间干扰；分集技术：抵抗多径传播引起的衰落
The composer has been dead for many years, but the interest in his music________recently.[ ]
A. has repeated
B. has regained
C. has revived
D. has recovered
颅脑先天性畸形神经管闭合障碍见于以下各病，错误的是（）
A.脑膨出
B.ChiariⅡ畸形
C.脑裂畸形
D.颅裂畸形
E.胼胝体发育不全
he interest in his music________recently.[ ]