近几年来，人们的消费倾向逐渐向着高质量的生活方式转变。国家在积极鼓励消费，拉动经济增长的同时，注意引导合理消费，改变居民的消费观念，倡导文明的消费行为、科学的消费方式。要引导居民合理消费，改变消费观念，就要使居民坚持
①从众心理引发的消费 ②求实心理主导的消费
③求异心理引发的消费 ④攀比心理引发的消费
A．①
B．②
C．①③④
D．②③④
答案：B
| Artificial flowers are used for scientific as Well as for decorative purposes. They are made from (51) of materials, such as wax and glass, so skillfully that they can scarcely be (52) from natural flowers. In making such models, painstaking skill and artistry are called for, (53) thorough knowledge of plant structure. The (54) of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known (55) the scientific world. (56) , there are several thousand models in colored glass, the work of two artist naturalists, Leopold Blalschka and his son Rudolph. The intention was to have the collection (57) at least one member of each flower family native to the United States. (58) it was never completed, it contains more than seven hundred species representing 164 families of flowering plants. (59) detail of these is accurately reproduced in color and structure. The models are (60) n locked cases as they are too valuable and fragile for classroom use. |
A．compared
B．distinguished
C．contrasted
D．differed