2. 外语
  3. Artificial flowers are used for scientific as well as for decorative purposes. They are made from【C1】______of materials, such as

Artificial flowers are used for scientific as well as for decorative purposes. They are made from【C1】______of materials, such as

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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.
【C3】
选项 A、in addition
B、as well
C、as well as
D、moreover
答案C
解析 从句子结构看，本题要求填人一个连接名词短语的连接词或词组，四个选项中，A项in addition“而且”和D项moreover“此外”都为副词，不能连接两个并列的成分。B项as well“也”必须与as连用，由于句子中前半部分的and连接的是painstaking skill和artistry，并不是与as well连用，故不能选B。正确答案为C，as well as相当于and。
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