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问题 选择题

水葫芦从国外引进，在滇池里疯狂生长，导致其他水生生物几乎绝灭。可知导致滇池生物多样性遭到破坏的原因是[ ]

A．乱砍滥伐    

B．乱捕滥杀    

C．环境污染    

D．外来物种入侵

答案

答案：D

单项选择题 A1/A2型题

肌束震颤的病损部位在（）。

A.上运动神经元

B.下运动神经元

C.神经肌肉接头

D.肌肉

E.锥体外系统
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单项选择题

Any lender about to make a loan wishes to know the real rate of interest; i.e., the contractual rate of interest less the rate of inflation. But what rate of inflation to use, past or expected Past inflation is the better choice, because we have specific firm figures for it so that the real rate of interest will also emerge as a specific figure.
Which of the following, if true, is the pest point that an opponent of the position above might make in arguing that the rate of expected inflation is the proper figure to use

A．Since the contractual interest is future income to a prospective lender, it is more appropriate to adjust that income in terms of inflation expected for the future.

B．Since estimating the rate of expected inflation presupposes careful economic analysis, lenders might derive coincidental benefits from doing such an estimate.

C．The rate of expected inflation will differ little from the rate of past inflation when inflation is steady.

D．No official rate of past inflation is computed for any period shorter than a month.

E．(E) The official rate of past inflation is a figure that depends on what commodities, in what proportions, determine the official price index.
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