压缩波
参考答案：
受扰动后波阵面上介质的压力、密度、温度等状态参数增加的波。反之，受扰动后波阵面上介质参数下降的波称为稀疏波或膨胀波。
________ they won the game was ________ we had expected. [ ]
A.That; which
B.Whether; that
C.What; that
D.That; what
下列哪些属于商业银行操作风险的内部流程监测内容（）。
A.失职违规
B.产品设计缺陷
C.错误监控/报告
D.文件/合同缺陷
