问题
选择题
2008年7月8日，中国人民银行公开发行第29届奥运纪念钞，面额为l0元，共发行600万张。该纪念钞与现行流通人民币具有相同职能，与同面额人民币等值流通。这里说的“奥运纪念钞”[ ]
①其面值由国家规定 ②是一种货币符号 ③只有使用价值，没有价值 ④本质是一般等价物
A．①②④
B．①②③
C．①③④
D．②③④
答案
答案：B
搜题请搜索小程序“爱下问搜题”
2008年7月8日，中国人民银行公开发行第29届奥运纪念钞，面额为l0元，共发行600万张。该纪念钞与现行流通人民币具有相同职能，与同面额人民币等值流通。这里说的“奥运纪念钞”[ ]
①其面值由国家规定 ②是一种货币符号 ③只有使用价值，没有价值 ④本质是一般等价物
A．①②④
B．①②③
C．①③④
D．②③④
答案：B
完形填空 阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。 Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to ___1___ themselves. Some birds like eating locusts(蝗虫), but birds cannot ___2___catch them. Why? It is because locusts change their__3___ with the change of the colors of crops. When crops are green, locusts look ___4___. But as the harvest time comes, locusts change into the same brown color __5___ crops have. Some other pests whose colors are ___6__ plants are easily found and eaten by ___7___. So they have to hide themselves for lives and appear only __8____. If you ___9___ animals’ life, you’ll find the main use of colors is to protect __10___. Bears, lions and other animals ___11___ quietly through forests. They cannot be easily seen by hunters ___12___ their colors are much like the trees. Colors are useful not only on the land, but also in the __13___. A kind of fish can __14____ a kind of black liquid(液体) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is ___15____ they can live safely though they are not strong at all. So colors are really useful to animals.
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