The term " installment sales " means the type of transaction under a sales contract in which the consumer is required to pay a down payment , with the balance to be paid in installments , and the business operator shall deliver the subject matter to the consumers upon receipt of the down payment 一二分期付款：指买卖契约约定消费者支付头期款，馀款分期支付，而企业经营者于收受头期款时，交付标的物与消费者之交易型态。
We have not begun formal negotiations or extended open skies offers , but over the last weeks we have worked through diplomatic channels and through direct contacts between u . s . and foreign transportation officials to raise informally with the relevant asian officials the possibilities for moving toward open skies 此举鼓励中国在去年发表声明，表示将依据国际法解决对南沙群岛的主权争议。此外，中国加入亚太经合会后也降低其关税，作为迈向在二o二o年之前达成此一地区开放与公平贸易的头期款。
