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  3. Artificial flowers are used for scientific as well as for decorative purpose

Artificial flowers are used for scientific as well as for decorative purpose

游客2025-03-22  40
问题     Artificial flowers are used for scientific as well as for decorative purposes. They are made from【C1】______of materials, such as wax and glass, so skillfully that they can scarcely be【C2】______from natural flowers. In making such models, painstaking skill and artistry are called for, 【C3】______thorough knowledge of plant structure. The【C4】______of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known【C5】______the scientific world. 【C6】______, 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【C7】______at least one member of each flower family native to the United States. 【C8】______it was never completed, it contains more than seven hundred species representing 164 families of flowering plants. 【C9】______detail of these is accurately reproduced in color and structure. The models are【C10】______in locked cases as they are too valuable and fragile for classroom use. [br] 【C1】
选项 A、a variety
B、some
C、a sort
D、several
答案 A
解析 B项some和D项several均表示“一些”，some／several of后面应当接表示限定范围的名词或代词，如：some of the students，several of them。因此，用在本句不合适。C项a sort：表示“一种”，这与句子后半部分的举例相矛盾，因而也不能适用。正确答案应选A项a variety，表示“种种”。
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