( )是从业人员的一种活力，要有坚韧不拔的毅力和敢于打破常规的精神支撑。
A．健康
B．技术
C．改革
D．创新
参考答案：D
简述物流技术装备应用配置的原则。
The world’s population has grown by ______ it was in 1800.
A．more than six times that
B．six times more than that
C．more than six times what
D．six times as many as
