In food, the best ratio of saturated fatty acid, monounsaturated fatty acids, polyunsaturated fatty acid should be (   )

A . Current B . Projected C . Historical D . Current and projected

A . weight of cable to weight of vessel B . weight of cable to weight of anchor C . length of anchor to depth of water D . length of cable to depth of water

A . consistent B . continual C . continuous D . numerou

A . Higher compression ratios create higher temperature B . Higher temperatures create higher compression ratios C . low temperatures create higher compression ratios D . Higher compression ratios create low temperature

A . primary feedback B . deviation C . sensitivity D . dead band

A、caught B、shot C、trailed 追踪 D、seeking

A . load B . substitute C . conservation D . reserve

A . increased horsepower B . reduced efficiency C . increased heat loss D . lower cylinder pressure

A . since B . however C . moreover D . consequently

A . 0 B . 1 C . 2 D . 3

A、pork B、food prepared with alchohol C、blood D、meat not slaughtered according to Islamic law

A．bar B．cottage C．shack D．cellar

seeds and fruits. Not long after the last Ice Age, around 7,000 B.C. (during the Neolithic period), some hunters and gatherers began to rely chiefly on agriculture for their sustenance. Others continued the old pastoral and nomadic ways. Indeed, agriculture itself evolved over the courseof (5) time, and Neolithic peoples had long known how to grow crops. The real transformation of human life occurred when huge numbers of people began to rely primarily and permanently on the grain they grew and the animals they domesticated. Agriculture made possible a more stable and secure life. With it Neolithic peoples flourished, fashioning an energetic, creative era. They were responsible for many fundamental inventions and (10) innovations that the modern world takes for granted. First, obviously, is systematic agriculture-- that is, the reliance of Neolithic peoples on agriculture as their primary, not/nerely subsidiary, source of food. Thus they developed the primary economic activity of the entire ancient world and the basis of all modern life. With the settled routine of Neolithic farmers came the evolution of towns and (15) eventually cities. Neolithic farmers usually raised more food than they could consume, and their surpluses permitted larger, healthier populations. Population growth in turn created an even greater reliance on settled farming, as only systematic agriculture could sustain the increased numbers of people. Since surpluses o food could also be bartered for other commodities, the Neolithic era witnessed ihe beginnings of large-scale exchange of goods. In time the increasing (20) complexity of Neolithic societies led to the development of writing, prompted by the need to keep records and later by the urge to chronicle experiences, learning, and beliefs. The transition to settled life also had a profound impact on the family. The shared needs and pressures that encourage extended-family ties are less prominent in settled than in nomadic societies. Bonds to the extended family weakened. In towns and cities, the nuclear family was (25) more dependent on its immediate neighbors than on kinfolk. What does the passage mainly discuss？ A．Why many human societies are dependent on agriculture B．the changes agriculture brought to human life C．How Neolithic peoples discovered agriculture D．Why the first agricultural societies failed

A．a little B．greatly C．deeply D．considerably

A．Inventory is declining B．Inventory is increasing C．Receivables are: being collected more rapidly than in the past D．Receivables are being collected more slowly than in the past

是 否

A．统计数字表明，按平均数计算，母亲受教育年限越长，她的家庭人口就越少。 B．统计数字表明，家庭平均人口的增长与母亲受教育的年限成反比。 C．统计数字表明，母亲受教育的时间越长，她的家庭就越大。 D．统计数字表明，母亲受教育的水平随着她的家庭人口的增多而增高。

A．YES B．NO C．NOT GIVEN