题干

假定2009年某国生产1件A商品和生产2件B商品的社会劳动时间都是10个小时,2011年生产A商品的社会劳动生产率提高一倍,在其他条件不变的情况下,按照等价交换原则,1件A商品可以交换B商品

A:1件

B:2件

C:4件

D:8件

上一题 下一题 0.0难度 选择题 更新时间:2012-07-05 11:05:57

答案(点此获取答案解析)

A

同类题3

阅读材料,完成下列要求。

材料一:守旧而又维新,复古而又开明,这样一种二重性的立场,使得儒家学说能够在维护礼教伦常的前提下,一手伸向过去,一手指向未来,在正在消逝的贵族分封制宗法社会和方兴的大一统国家之间架起了桥梁。这就是为什么儒学在当时能够成为“显学”以及虽然在变革动荡的形势下显得迂阔难行,而到新社会秩序巩固后又捧上独尊地位的原因。汉代以后,儒学几经变化。礼教德治思想始终一贯,从而成为中国传统文化的正宗。

——张岱年、方克立主编《中国文化概论》

材料二:朱熹生活的南宋时代,整个社会统治阶级鲜廉寡耻,生活奢侈无度。在这种时代背景下,朱熹提出“存天理,灭人欲”之说。天理是公道和良知。……朱熹区分了“欲”和“人欲”。欲是正常的,饥而欲食,渴而欲饮,这是正常的欲。朱熹要灭的是“人欲”,又叫“物欲”……朱熹认为当时国之大患根在君王心术已受蒙蔽。应该根据《大学》之教,以正心诚意作为治国平天下的根本。针对当时朝野上下普遍信奉佛教禅宗思想,他提出了“格物致知”之旨,即要求人要“推究事物的原理,以获得知识”。

——洪映萱《另一种声音——对朱熹“存天理,灭人欲”等理学观念的反思》

材料三:在物质生活富足的前提下,那些经济上有实力的商家要求政治上的地位,于是出现了精神上的反叛。这种生活本体的变化引发了作家创作意识变化,时代前进的要求也为时代前进的思想变化提供了基础。李贽在这样一种生存环境下,他的思想也有了初步的“民主意识”,从而为他的“民本意识”突破儒家“民本思想”提供了社会基础。从李贽生存的地理环境来看,当时李贽生活在比较繁华的贸易港口泉州,西方的一些先进思想和观念通过这一窗口传播进来。在中西方文化的交融影响下,李贽的思想更具反叛精神,富有战斗性。

——肖国华《李贽的儒家情节》

同类题4

根据短文内容的理解,选择正确答案。

    Nobody likes doing the dishes, but it turns out that doing this daily task might pay off in an unexpected way. According to a new study published in the Journal of Pediatrics, washing dishes by hand instead of using a dishwasher might prevent the development of allergies.

    Researchers in Sweden surveyed the parents of 1,029 children ages 7 and 8. They discovered that children whose families hand-washed the dishes instead of using a machine were less likely to have allergies.

    Earlier research has shown that dishes washed by machine are cleaner than those washed by hand. So why would kids who eat off slightly dirtier plates be better off when we talk about preventing allergies? One explanation is based on a theory known as the "hygiene hypothesis (卫生假说)," which says the reason why kids develop allergies is that their surroundings are actually too clean.

    Your immune (免疫) system keeps you healthy by fighting germs (病菌) like bacteria and viruses. But when you have allergies, it overreacts and tries to fight ordinary things like pollen (花粉) or certain foods.

    Being exposed to germs, particularly early in life, is good training for the immune system, says the lead author of the study, Dr. Bill Hesselmar of Queen Silvia Hospital in Sweden. "You excite the immune system in various ways and it becomes tolerant."

    This study shows that while using the dishwasher might be easier, the old-fashioned method of cleaning up could be better for your health.