在△ABC中，∠C=90 °，AD是∠BAC的平分线，若DC=6，则D点到AB的距离是（ ）。
6
简述财务比率分析法的具体内容。
The new CEO demanded that all inter-office communications ______ in writing rather than in person, ______ possible.
A．have been made; whoever
B．would be made; whichever
C．be made; whenever
D．were made; whatever
