Registers, formed from collection of flip -flops, are used to store or manipulate data or both. Input and output function associated with registers include Parallel input/ Parallel output Serial input/ Serial output Parallel input/ Serial output OSerial input parallel output

Unit 12 Claim and Settlement Points for attention: When making a claim, plan your letter as follows: Begin by regretting the need to complain Mention the date of the order, the date of delivery and the goods complained about

1)信头(letterhead) 1 Structure －－－ 2）编号，日期 3）封内名称和地址 (inside address) (reference and date) 4）经办人(attention) 5）称呼(salutation) 6）事由（标题）(subject) 7）正文(body) 8）结尾敬词(complimentary) 9）签名(signature) 10）附件 (enclosure) 11）抄送(cc to XX) 12）附言(postscript)

9WTO体制与国际服务贸易 9.1W体制简介 9.1.1TO体制的特点 1995年1月1日WTO取代了GATT成为国际贸 易的主要组织与GATT体制相比,WTO体制具有 以下三个特点: 制度安排的区域性。 WTO体制在法律上实现了临时适用性向正式 适用性的转变;有一套完整的组织机构,包括 WTO本身,下属权力、行政、\司法和监察等机 构;作为正式的国际组织,WTO是国际法主体

TAC Three address code Three-address code (TAC) will be the intermediate representation used in our Decaf compiler. It is essentially a generic assembly language that falls in the lower-end of the mid-level IRs. Many compilers use an IR similar to TAC. It is a sequence of instructions, each of which can have at most three operands. The operands could be

TAC Handout written by Maggie Johnson and revised by me. Three address code Three-address code(TAC) will be the intermediate representation used in our Decaf compiler. It is essentially a generic assembly language that falls in the lower-end of the mid-level IRs. Some variant of 2, 3 or 4 address code is fairly commonly used as an IR, since it maps well to most

z平面内的任一条有向曲线C可用 z=z(t),a≤t≤β 表示,它的正向取为t增大时点z移动的方向, z(t)为一条连续函数. 如果z(to)≠0,ato