问题
单项选择题
| 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．Because
B．However
C．Nevertheless
D．Although
答案
参考答案：D
解析：相对于空格所在的句子来说，下句的意思明显发生转折。因此本句中应该填入D项A1though(虽然)。B项However和C项Nevertheless是同义词，意为“然而；但是”，但它们是副词。本句中显然缺一个连词，因此需选用引导让步状语从句的连词Although。