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问题 单项选择题

选举制度中的“一人一票，每票等值”的要求体现了( )

A．普遍原则
B．公开原则
C．自由原则
D．平等原则

答案

参考答案：D

解析： 本题主要考查西方选举制度的原则。
[要点透析] 西方选举制度中的平等原则主要体现在两个方面：一是“一人一票”，即在一次选举中，每个选民只有一票投票权；二是“每票等值”，即每个选民所投的选票效力相等。

解答题

下图为人体血液循环过程模式图，请据图回答下列问题：

（1）上图所示过程Ⅰ通过______完成的，通过过程Ⅱ血液发生的变化是____________．

（2）在图示的各结构中，氧气浓度最低的______．

（3）请用图中的字母和文字表示体循环的途径：____________．

（4）若E代表的是小肠绒毛，经过此处后，①与经过其他组织细胞后交换到血液中的成分相比的区别是______．
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单项选择题

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

Two cyclists are racing up a mountain at different constant rates. Cyclist A is now 50 meters ahead of cyclist B. How many minutes from now will cyclist A be 150 meters ahead of cyclist B ？（）
(1) 5 minutes ago, cyclist A was 200 meters behind cyclist B.
(2) Cyclist A is moving 25% faster than cyclist B.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.
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