()is not a physical wall, but a lot of virtual data to protect the computer network. Data wall 。 Data Channel 。 Data base 。 firewall。
() is meant to provide facility for customer’s need or inquiry and arrange it. Service 。 business 。 customer service 。 making money。
Saving or reducing expenditure in business is () Save money 。 Increase cost 。 cost planning 。 cost control。
()is very convenient equipment for loading and unloading goods. Crane 。 pallet truck 。 Fork lift 。 Fork lift truck。
银行属于我国的第()产业。 第一产业。 第二产业。 第三产业。 综合产业。
()is more accurate and easier than Fixed Interval System ( FIS ) in the order method.