Passage One
Artificial flowers are used for scientific as well as for decorative purposes. They are made from a variety of materials, such as wax and glass, so skillfully that they can scarcely be distinguished from natural flowers. In making such models, painstaking skill and artistry are called for, as well as thorough knowledge of plant structure. The collection of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known throughout the scientific world. In all, there are several thousand models in colored glass, the work of two artists-naturalists, Leopold Blaschka and his son Rudolph.
The intention was to have the collection represent at least one member of each flower family native to the United States. Although it was never completed, it contains more than seven hundred species representing 164 families of flowering plants, a group of fruits showing the effect of fungus diseases, and thousands of flower parts and magnified details. Every detail of these is accurately reproduced in color and structure. The models ate kept in locked cases, as they are too valuable and fragile for classroom use.
31. Which of the following is the best title for the passage?
A. An Extensive Collection of Glass Flowers.
B. The Live Leopold and Rudolph Blaschka.
C. Flowers Native to the United States.
D. Materials Used for Artificial Flowers.
第1题
下列关于运行符重载的描述中,正确的是()。
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变操作数的优先级
C.运算符重载可以改变运算符的结合性
D.运算符重载可以使运算符实现特殊功能
第2题
下列关于运行符重载的描述中,正确的是()。
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变操作数的优先级
C.运算符重载可以改变运算符的结合性
D.运算符重载可以使运算符实现特殊功能
第3题
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变操作数的优先级
C.运算符重载可以改变运算符的结合性
D.运算符重载可以使运算符实现特殊功能
第4题
下列关于运算符重载的描述中, ______ 是正确的。
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变优先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第5题
下列关于运算符重载的描述中,正确的是()。
A.运算符重载可以改变运算符的操作数的个数
B.运算符重载可以改变优先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第6题
下列关于运算符重载的描述中,正确的是()。
A.运算符重载可以改变运算符的操作数的个数
B.运算符重载可以改变优先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第7题
下列关于运算符重载的描述中,正确的是()
A.运算符重载可以改变运算符的操作数的个数
B.运算符重载可以改变优先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第8题
下列关于运算符重载的描述中,正确的是()。
A.运算符重载可以改变运算符的操作数的个数
B.运算符重载可以改变优先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第9题
下列关于运算符重载的描述中,()是正确的。
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变化先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
第10题
下列关于运算符重载的描述中,()是正确的。
A.运算符重载可以改变操作数的个数
B.运算符重载可以改变化先级
C.运算符重载可以改变结合性
D.运算符重载不可以改变语法结构
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