lsat-22-3-1

entia

1. If a country's manufacturing capacity is fully utilized, three can be no industrial growth without new capital investment. Any reduction in interest rates produces new capital investment.

Which one of the following can be properly concluded from the statements above? (A) Interest rates might in exceptional cases be reduced without there being any subsequent investment of new capital. (B) A reduction in interest rates might cause a precondition for industrial growth to be met. (C) If a country's manufacturing capacity is underutilized, interest rates should be held constant. (D) New capital investment that takes place while interest rates are rising cannot lead to industrial growth. (E) Manufacturing capacity newly created by capital investment needs to be fully utilized if it is to lead to industrial growth.

我后来再看我选的e ，不知道哪里错了。原文 If a country's manufacturing capacity is fully utilized是个前提条件，所以说，当有了 newly created by capital investment 的时候。必须放在If a country's manufacturing capacity is fully utilized这个前提条件下才能套用原文的推理模式。难道不对吗？？

b正确是否就是因为那个MIGHT COUSE

hedonism555

原文是充分条件， 所以， A=>B ,  but  B cannot =>A

entia

我脑袋江湖了

Bensontuo

entia 发表于 2004-12-18 15:43
1. If a country's manufacturing capacity is fully utilized, three can be no industrial growth withou ...

Spot the question type: Must be true - conclusion

If c is fully utilized, 3 can be industrial growth ---> new capital investment

If reduction in interest rate ---> new capital investment

If c is fully utilized, 3 can be industrial growth, and if 3 can be industrial grown, interest rate must be reduced.

Excellent question. In fact, answer choice (A) directly contradicts the stimulus. This is a Must Be True question, so we're looking for an answer choice that passes the Fact Test™. We need to find a statement that we can prove based on information in the stimulus. This stimulus contains two conditional statements:

Industrial growth requires capital investment. IG  :arrow: CI
Reducing interest rates results in capital investment. RIR  :arrow: CI

Thus, we know that any time we reduce interest rates, there must be capital investment. Answer choice (A) contradicts this statement. First, we don't know anything about "exceptional cases." Second, if we take the information in the stimulus to be true, even in exceptional cases there would still be capital investment every time interest rates are reduced.

Answer choice (B) gives us a scenario in which interest rates have been reduced. What do we know when interest rates are reduced? We know there will be capital investment. If he have capital investment, we then know that a necessary precondition for industrial growth has occurred.

If we use the conditional statements correctly, we actually can infer with more certainty that a precondition for industrial growth has been met with reduced interest rates. The reduction in interest rates "will produce" capital investment, not just "might cause."

In effect, we can say, "Hey guys, not only do we know the reduced interest rates might cause capital investment. They will cause capital investment." So we're super sure that (B) is a valid statement.

I hope this helps!

Bensontuo

entia 发表于 2004-12-18 15:43
1. If a country's manufacturing capacity is fully utilized, three can be no industrial growth withou ...

E is the shell game answer.

original argument:

If it could be fully utilized ---> industrial growth ---> new investment

E's argument:

If industrial growth ---> capacity ---> capital investment ---> fully utilized ( mistake reverse )