大全－1－7

7.     Stronger patent laws are needed to protect inventions from being pirated. With that protection, manufacturers would be encouraged to invest in the development of new products and technologies. Such investment frequently results in an increase in a manufacturer’s productivity.

Which of the following conclusions can most properly be drawn from the information above?

(A) Stronger patent laws tend to benefit financial institutions as well as manufacturers.

(B) Increased productivity in manufacturing is likely to be accompanied by the creation of more manufacturing jobs.

(C) Manufacturers will decrease investment in the development of new products and technologies unless there are stronger patent laws.

(D) The weakness of current patent laws has been a cause of economic recession.（E）

(E) Stronger patent laws would stimulate improvements in productivity for many manufacturers.

A is needed to B = A is necessary to B.吗？为什么选E？

1。如果知道题的来源，请PONY按规定注明题的来源

2。A is needed to B = A is necessary to B对

3。这是MUST BE TRUE题。从做题角度，ABD因为有新元素而排除。剩C和E。C的WILL DECREASE INVESTMENT太STRONG，WILL是100%CERTAINTY。原文只是说encouraged to invest ，并没有100%增加或减少INVESTMENT，所以错。只剩下E

4。E对的原因：原文说PROTECTION会鼓励投资，从而导致生产率提高。而PROTECTION的前提条件是有STONGER PATENT LAWS。所以STONGER PATENT LAWS会刺激生产率提高。注意这些推理中不是MUST BE TRUE的关系，而是因果联系。

谢谢lawyer_1。

大全－１－７，后面那个７我不小心写掉了

Stronger patent laws are needed to protect inventions from being pirated，那stronger laws 就是to protect 的必要条件，为什么变成前提条件了？

E答案里那个“many", 总让我感觉怪怪的。

1。many 在逻辑中等同于SOME。故不必管它

2。 前提条件就是必要条件。

protect inventions from being pirated-->Stronger patent laws

With that protection,--> manufacturers would be encouraged to invest in the development of new products and technologies--->. Such investment frequently results in an increase in a manufacturer’s productivity.

so protection --> increase in productivity

so E

C is required condition.