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．All
B．Every
C．Whole
D．None
答案
参考答案：B
解析：本题要求填入一个修饰单数可数名词detail的限定词，正确答案应是B项Every。A项All后接可数名词复数或不可数名词，C项Whole修饰名词时，前面要加the，D项None是代词，不修饰名词。所以其他三个选项都不正确。