排球技术
参考答案：
指在排球规则允许的条件下，运动员采用的各种合理的击球动作和配合动作的总称。
刑事诉讼中，鉴定结论要解决的是什么问题？
By 16:30, was almost closing time, nearly all the paintings had been sold.[ ]
A．which
B．when
C．what
D．that
