涂装方法是指利用涂装工具设备和工具，将涂料薄而均匀地涂布在被涂物表面上的工艺。
参考答案：对
对单位价值高、性能复杂、需要做示范的产品，通常采用（）策略。
A．广告
B．公共关系
C．推式
D．拉式
His ______ behavior made everyone nervous. He was always rushing to open doors and perform other small tasks, apologizing unnecessarily for any inconvenience that he might have caused.
A．oblivious B．observant C．obsequious D．obsolescent
