问题 问答题 简答题

部分积累制筹资模式的特点是什么。

答案

参考答案:初期缴费较低,以后将逐渐稳定,具有较大的灵活性,既避免了基金制的较大风险,又可缓解现收现付制缺乏储备和负担不均的问题。

筹资方式虽好,但操作起来难度较大,尤其是在各种比率的掌握上,很难做到恰到好处。

如果各种标准和比率不当,不但得不到应有的效果,反而导致管理成本的大幅度提高。

制度设计上要谨慎,不仅要有定性分析,还要从数量上进行严格测试。

单项选择题
单项选择题

Most plants can make their own food from sunlight, (1) some have discovered that stealing is an easier way to live. Thousands of plant species get by (2) photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3) of fungi(真菌). But in (4) a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5) are (6) , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7) of a common type of fungus, so (8) that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9) at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.

Plants have (10) relations to get what they need to survive. Normal, (11) plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have (12) a symbiotic relationship with a (13) network of what are called my corrhizal fungi, which lies beneath the forest (14) . The fungi help green plants absorb minerals through their roots, and (15) , the plants normally (16) the fungi with sugars, or carbon with a number of plants sharing the same fungal web, it was perhaps (17) that a few cheaters—dubbed epiparasites—would evolve to beat the system. (18) , these plants reversed the flow of carbon, (19) it into their roots from the fungi (20) releasing it as "payment.\

9()

A.shows

B.denotes

C.indicates

D.hints