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问题 问答题 简答题

简述原生质体摄入细胞器的三种方式?

答案

参考答案：

1、通过内吞作用摄入，细胞器附着在原生质体膜上，接着细胞器内陷，膜包裹的细胞器

释放到细胞质中。

2、通过融合作用摄入，细胞器内含物游离释放到细胞质中

3、用脂质体包装，并通过融合作用摄入，脂质体起到保护细胞器的作用

单项选择题

This is offered as a textbook illustration of the principle that voters are far shrewder than most politicians believe. This case study highlighting Washington’’s inability to fool anyone is based on a recent survey of the attitudes of people on Medicare about their new prescription-drug benefit.Last fall, when Congress added prescription-drug coverage to Medicare, the new law was hailed as a political masterpiece. Congressional Democrats, who overwhelmingly opposed the bill, thundered that they, too, were eager to provide a drug benefit under Medicare, but they championed alternative legislation that offered a larger drug subsidy and smaller incentives to health insurers to participate. Liberals such as Sen. Edward Kennedy were confident that the drug bill, with plenty of holes in its benefit formulas, would inevitably be expanded around the time it took effect.Not many in Congress seemed troubled that the federal budget was deep in deficit, the nation was saddled with future expenditures for the Iraq war and virtually no health care expert believed that the legislation would fit into its projected $400-billion-over-10-years cost framework. The new law was a cynical bargain that had more to do with the 2004 election than a rational approach to the prescription-drug needs of the nation’’s elderly.The prescription-drug legislation seems a compromise between competing ideologies inserted into a fixed congressional budget. Put another way, it was sausage-stuffing in the guise of lawmaking. And, what no one anticipated was the reaction of the elderly, a group that votes in disproportionate numbers.

Also found in Paragraph 1, what does "this case study" probably refer to

A．A case study the writer is to talk about.

B．Part of a textbook on politics.

C．What the author is going to write.

D．Washington’s inability to fool anyone.
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单项选择题 案例分析题

2010年10月15-18日，中 * * 党第十七届五中全会召开，会议通过的“十二五”建议中经济结构调整、转变经济发展方式……等关键词出现频率最高。据此回答下列各题。

会议通过的“十二五”建议中坚持把结构调整和节能减排作为转变经济发展方式的重要途径，依靠科技进步和劳动者素质提高，推动产业结构优化升级和经济发展方式转变，提高经济增长质量。这说明（）

①要善于透过事物的内部联系把握事物的外部联系

②事物的发展是无条件的、绝对的

③要注重系统内部结构的优化趋向，实施系统优化

④搞好局部可以使整体功能得到最大发挥

A.③④

B.①②

C.①③

D.②④
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