Can a customer order more than one product through a single order?

ro H AJAX_REGION RegionID RegionName PK PK FK FK AJAX_CUSTOMER Customer PK RegionID FK LastName FirstName EmailAddress Phone StreetAddress City State Zip AJAX_ORDER Order Number CustomerID DeliveryID OrderDate Order Type PaymentType SubTotal Shipping AJAX_LINE_ITEM Order Number PK FK LineNumber PK ProductNumber FK Quantity AJAX_DELIVERY DeliveryID DeliveryDesc PK AJAX_PRODUCT Product Number PK