某生产小组5个工人的日产量分别为30、32、33、35、38件。要求：计算工人平均日

假设业务发生前速动比率大于1，偿还应付账款若干，将会（）。

A.增大流动比率，不影响速动比率

B.增大速动比率，不影响流动比率

C.增大流动比率，也增大速动比率

D.降低流动比率，也降低速动比率

下列标点符号使用不正确的一项是

A．从这一边看那一边，岸滩，房屋，林木，全都清清楚楚。

B．小坪下有几块菜地，豆角蔓、苦瓜藤和紫苏叶子都非常茂密。

C．这个家庭，书籍、衣服、杯、盘、碗、碟都放得井井有条。

D．侵赂者的谎言，骗不了人；他们的武力，吓不倒人。

IB制度起源于( )，目前在金融期货交易发达的国家和地区得到普遍推广，并取得了巨大成功。

A．日本
B．中国香港
C．美国
D．德国

Mass production, the defining characteristic of the Second Wave economy, becomes increasingly obsolete as firms install information intensive, often robotized manufacturing systems capable of endless cheap variation, even customization. The revolutionary result is, in effect, the demassification of mass production.

The shift toward smart flex techs promotes diversity and feeds consumer choice to the point that a Wal-Mart store can offer the buyer nearly 110,000 products in various types, sizes, models and colors to choose among. But Wal-Mart is a mass merchandiser. Increasingly, the mass market itself is breaking up into differentiated niches as customer needs diverge and better information makes it possible for businesses to identify and serve micro markets.

Specialty stores, boutiques, superstores, TV home-shopping systems, computer based buying, direct mail and other systems provide a growing diversity of channels through which producers can distribute their wares to customers in an increasingly demassified marketplace. When we wrote Future Shock in the late 1960s, visionary marketers began talking about "market segmentation". Today they no longer focus on " segments" but on " particles "—family units and even single individuals. Meanwhile, advertising is targeted at smaller and smaller market segments reached through increasingly demassified media.

The dramatic breakup of mass audiences is underscored by the crisis of the once great TV networks, ABC, CBS, and NBC, at a time when Tele-Communications, Inc. of Denver, announces a fiber optic network capable of providing viewers with five hundred interactive channels of television. Such systems mean that sellers will be able to target buyers with even greater precision. The simultaneous demassification of production, distribution and communication revolutionizes the economy and shifts it from homogeneity toward extreme heterogeneity.

The author calls those marketers "visionary" mainly because（）

A. they began talking about "market segmentation" in 1960s

B. they focus on "market particles"

C. they have a good sense of market prediction

D. they are good at identifying micro markets

回购协议中所交易的证券主要是( )。

A．银行债券
B．企业债券
C．政府债券
D．金融债券