计算：sin17°cos43°+cos17°sin43°．
原式=sin（17°+43°）=sin60°=32．
（66）from one phase are usually reviewed for completeness and accuracy and approved before work starts on the next phase．
A．Process
B．Milestone
C．Work
D．Deliverables
蜂窝式无线技术将地区按地理划分，来支持其服务。（）
