试题与答案

“南海一号”是一艘沉没于800多年前南宋时期的木质古沉船,它是迄今为止在环中国海

题型:选择题

题目:

“南海一号”是一艘沉没于800多年前南宋时期的木质古沉船,它是迄今为止在环中国海区域发现的沉船中年代最早、船体最大、保存最完整的远洋贸易商船。出水货物不仅包括品种众多的瓷器数千件,还包括一摞一摞的铁锅和一篓一篓的铁钉。专家们认为“南海一号”具有非同寻常的学术价值,其可供研究的“学术价值”体现在

①宋代冶铁业的发达                     ②宋代造船技术的发展 

③手工工场的生产状况                   ④制瓷技术的进步 

A.①②③  

B.①②④  

C.②③④  

D.①③④

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:产品进入成熟期后,市场需求趋向饱和,潜在的顾客已经很少,销售额增长缓慢,直至转向下降;竞争逐渐加剧,产品售价降低;促销费用增加,企业利润下降;成熟期一般要比前两个阶段经历的时间长。

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小题1:Simpsons come from Canada.
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