请问这几道题按照helr的分类应该是什么？？出自prep 07

石鑫玥

According to a review of 61 studies of patients suffering from severely debilitating depression, a large majority of the patients reported that missing a night's sleep immediately lifted their depression. Yet sleep-deprivation is not used to treat depression even though the conventional treatments, which use drugs and electric shocks, often have serious side effects.

Which of the following, if true, best explains the fact that sleep-deprivation is not used as a treatment for depression?

• A
  
  For a small percentage of depressed patients, missing a night's sleep induces a temporary sense of euphoria.
  
  
  
• B
  
  Keeping depressed patients awake is more difficult than keeping awake people who are not depressed.
  
  
  
• C
  
  Prolonged loss of sleep can lead to temporary impairment of judgment comparable to that induced by consuming several ounces of alcohol.
  
  
  
• D
  
  The dramatic shifts in mood connected with sleep and wakefulness have not been traced to particular changes in brain chemistry.
  
  
  
• E
  
  Depression returns in full force as soon as the patient sleeps for even a few minutes.
  
  
  
  

我一开始觉得是因果推理。典型的A， however B。
                                        因：失眠能消除depression
                                        果：失眠是治疗depression的好方法。
所以我觉得在答案里找消弱项就可以了。但是正确答案选E，E明显是个否定性副作用，这只出现在方案推理里。所以 请问这道题为什么不是因果，而是方案推理？？


还有一道题：

Manufacturers sometimes discount the price of a product to retailers for a promotion period when the product is advertised to consumers.  Such promotions often result in a dramatic increase in amount of product sold by the manufacturers to retailers.  Nevertheless, the manufacturers could often make more profit by not holding the promotions.

Which of the following, if true, most strongly supports the claim above about the manufacturers' profit?

(A) The amount of discount generally offered by manufacturers to retailers is carefully calculated to represent the minimum needed to draw consumers' attention to the product.

(B) For many consumer products the period of advertising discounted prices to consumers is about a week, not sufficiently long for consumers to become used to the sale price.

(C) For products that are not newly introduced, the purpose of such promotions is to keep the products in the minds of consumers and to attract consumers who are currently using competing products.

(D) During such a promotion retailers tend to accumulate in their warehouses inventory bought at discount; they then sell much of it later at their regular price.

If a manufacturer fails to offer such promotions but its competitor offers them, that competitor will tend to attract consumers away from the manufacturer's product.

不太明白这道题的分类是什么。
求大神给出解答 谢谢。

石鑫玥

求不沉