[求助]大全-7-20 困惑

20.         One analyst predicts that Hong Kong can retain its capitalist ways after it becomes part of mainland China in 1997 as long as a capitalist Hong Kong is useful to China; that a capitalist Hong Kong will be useful to China as long as Hong Kong is prosperous; and that Hong Kong will remain prosperous as long as it retains its capitalist ways.

If the predictions above are correct, which of the following further predictionscan logically be derived from them?

(A) If Hong Kong fails to stay prosperous, it will no longer remain part of mainland China.        

(B) If Hong Kong retains its capitalist ways until 1997, it will be allowed to do so afterward.        

(C) If there is a world economic crisis after 1997, it will not adversely affect the economy of Hong Kong.

(D) Hong Kong will be prosperous after 1997.（B）

(E) The citizens of Hong Kong will have no restrictions placed on them by the government of mainland China.

本来想试试刀, 了解自己是否掌握充分条件和必要条件,信心十足选了A,结果发现是错的. 找了半天原因也不知从哪里错起的. 极受打击.

这道题我想请教一下解体思路,

我觉得A 是        非NC-->非结果, 为什么错呢?        B是怎么推的我觉得很困惑. 请帮帮我!!!.

1。该题可用排除法：

A。remain part of mainland China在原文是状语部分，不参与逻辑推理。而在A中参与，故错

C。经济危机对经济的影响在原文没有体现。错

D。E。原文是充分必要推理链，没有推理起点，得不出没有假设的判断句。

2。这种题少出，因为as long as 有歧义，既可带充分条件，又带表示必要条件，特别是中文老将它译为“只要”（必要条件，其实有时是错的）。在这里带充分条件，相当于If。这样理解很容易就得出B是答案。

看来我是将as long as理解为必要条件的引导词了.所以觉得B不对.再读A ,确实remain part of mainland China 是状语.

谢谢lawyer及时提点.

我在想GMAT会不会时而考as long as 带充分条件,时而带必要条件? 那可就惨了.