一架玩具飞机的价格上涨,不会涨到一架飞机的价格;一架飞机的价格下跌,也不会跌到一

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问题:

一架玩具飞机的价格上涨,不会涨到一架飞机的价格;一架飞机的价格下跌,也不会跌到一架玩具飞机的价格。这说明  [ ]

①价值决定价格 ②价格不会偏离价值太远 ③商品的用途决定价格 ④商品的使用价值决定价格 

A.①②    

B.①②③    

C.②③    

D.②④

考点:价值规律价值决定价格
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阅读短文,用所给动词的适当形式填空。

     One day, a lady     l      (see) a mouse run across her kitchen floor when she was cooking. She was

very afraid of mice, so she ran out of the house, got on a bus and __2      (go) down to the shops. There

she spent 10 dollars __3      (buy) a mouse-trap. The shopkeeper said to her,"Put some cheese on",then

you     4      (catch) that mouse soon."

     The lady went home with the mouse-trap, but when she    5       (look) in her cupboard, she couldn't

find cheese in it.She didn't want _  6      (go) back to the shop because it was too late, so she cut  a

picture of some cheese out of a magazine and     7      (put) that in the trap. To her surprise, the picture

of the cheese    8      (be) quite successful! When the lady __9      (come) down the kitchen the next

morning, she    10      (find)there was a picture of a mouse which was put in the trap beside the picture

of the cheese!

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下列关于煤的燃烧过程叙述不正确的是( )。

A.煤的可燃质的结构主体是碳原子构成的六角形片状大分子
B.煤是一种复杂的固体碳氢燃料,除了水分和矿物质等惰性杂质以外,主要成分是由碳、氢、氧、氮和硫这些元素的有机聚合物组成的
C.若外界温度足够高,又有一定量的氧,那么挥发出来的气态烃就会首先达到着火条件而燃烧起来
D.煤在受热时,媒颗粒表面和渗在缝隙里的水分蒸发出来,变成干燥的煤,同时逐渐使最易断裂的链状和环状的烷挥发出来成为气态挥发分

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想咨询一下关于成都住房公积金的事项,为什么打96319打不通?

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采用()原则组织生产单位,最大的问题是如何解决产品或零部件种类繁多、每种零部件加工数量很少的问题。

A.工艺专业化

B.对象专业化

C.追求利润最大化

D.渠道专营化

题型:选择题

DNA中的糖是()

A.葡萄糖

B.D-核糖

C.6-磷酸果糖

D.D-2-脱氧核糖

E.半乳糖

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