(1)翻译下列条款(2分) TERMS oF PAYMENT. 30%T/T in advance,70%L/C at 30 days after B/L date opened through a bank acceptable to the seller valid for deferred payment in China until 20 Nov.2006. (2)回答下列问题 ①受益人是否一定要向银行提交汇票?为什么?(2分) ②假如该条款的付款时间改为“at 30 days after sight”,对浙江有限公司是否有 为什么?(1分)