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问题 选择题

在某村村民委员会的选取过程中，下列村民中哪些人有选举权和被选举权（    ）

①李老汉，84岁，卧床不起  

②成绩很优秀16岁初三学生  

③32岁在广东打工的刘明  

④只有小学2年级文化的张大娘

A．①②③

B．②③④

C．①②④

D．①③④

答案

Ｄ

题目分析：根据教材知识，年满18周岁时，我们就拥有了宪法赋予公民的政治权利——选举权和被选举权。（享有选举权和被选举权的条件：具有中国国籍；年满18周岁；依法被剥夺政治权利的人除外。）所以答案选Ｄ。

问答题

错误拒绝率(False Rejection Rate，FRR)是表征生物特征识别系统性能最重要的参量之一，每种特征识别率相乘的结果决定了误认率，如将面貌的误认率设为1%，声音和唇部动作的误认率也分别设为1%，则总的误认率只有1%。当其中的一种生物特征变动时，BioID还能依据其他2项生物特征进行识别。
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单项选择题

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 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 artist-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 are kept in locked cases as they are too valuable and fragile for classroom use.

It can be inferred from the passage that the goal of Leopold and Rudolph was to（）

A. create a botanical garden where only exotic flowers grew

B. do a thorough study of plant structure

C. make a copy of one member of each United States flower family

D. show that glass are more realistic than wax flowers
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