求大神解答几题helr上不懂得题目

415lethe

1. In order to stop hair loss, a shampoo company plans to use Angelica sinensis, an eatable herb, as an important additive in its shampoo. Angelica sinensis can only be found at Yangshuo, a smal town in China, and the hair of residents in Yangshuo who use Angelica sinensis as shampoo is extremly healthy and black. Clearly, therefore, the product of shampoo with Angelica sinensis should be effective to stop hair loss

Which of the following is an assumption on which the argument depends?


A.Angelica sinensis will not be ineffective if synthesized with other ingredients in many shampoos.
B.If the residents in Yangshuo leave to other cities, many of them will suffer hair loss.
C.Some of the shampoo company's consumers do not suffer from hair loss.
D.Even if the shampoo company adds Angelica sinensis to its product, the sales of shampoo will remain stable or even decrease slightly because of its poor band image.
E.It can be estimated that in the year after the company adds Angelica sinensis, there would not be a greater variety of shampoos on the market than there was during the previous year.







正确答案：B
楼主选的A 很纠结AB啊 ，求大神解答







2.Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg. If they laid too many eggs in a  host egg, the developing wasp larvae would compete with each other to the death for nurtrients and space. If too few eggs were laid, portions of the host egg would decay, killing wasp's larvae.

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

A. The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behaviour.
B. Host insects lack any effective defenses against the form of predation practiced by parasitic wasps.
C. Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.
D. Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than laying too many eggs would.
E. Parasitic wasps use visual clues to calculate the size of a host egg.






正确答案：A
纠结于C
如果按照题目的意思 这种寄生性的黄蜂根据宿主昆虫的size来考虑产多少卵，如果产的太多，则黄蜂的幼虫可能因为争夺营养和空间而死亡，如果产的太少，则宿主会腐烂而杀死黄蜂幼虫。 黄蜂根据宿主的size来产卵，而A中宿主的size可以由黄蜂的产卵活动决定， 不是把因果关系说反了吗？






3.Car telephones have become increasingly popular because they permit people to make or receive business calls while driving. As an additional benefit, motorists can quickly call for help in the event of an accident or breakdown. Nevertheless, car telephones should be prohibited because their use causes hazardous driving.


It can be concluded that from the statements above the author is comitted to the truth of which of the following statements?


B. The reason twhy the use of car telephones causes hazardous driving is that while dialing calls drivers cannot keep both hands on wheel.


C. The advantanges afforded by car telephones do not outweigh the risks of hazardous driving created by them.


D. In order to dial or receive telephones calls, drivers must momentarily take their eyes off the road, and this practice is hazardous






正确答案C
求问BD为什么不可以， BD也是说的手机导致的危险驾驶啊。。。

谢谢~~

415lethe

alzn2765 发表于 2016-4-26 22:14
我看了第一题，你做的哪里的题？明显答案有误。

就是毕出的批判性逻辑推理那本书

415lethe

alzn2765 发表于 2016-4-26 22:14
我看了第一题，你做的哪里的题？明显答案有误。

请问能再给我一个入群二维码嘛过期了

415lethe

alzn2765 发表于 2016-5-10 10:39
Here you are

many thanks~~

415lethe

ashleesun 发表于 2016-5-11 15:07
1. In order to stop hair loss, a shampoo company plans to use Angelica sinensis, an eatable herb, as ...

谢谢解答！
可是 题目中不是通过用AS洗头的人头发都很健康 推导出 加了AS的【洗发水】对头发好 gap不应该是 as单独用有效 可是在洗发露中是否仍然有效吗？ 因此考虑A

415lethe

ashleesun 发表于 2016-5-11 15:24
3.Car telephones have become increasingly popular because they permit people to make or receive busi ...

B的分析没有看懂 烦请再解释下 谢谢·~~

415lethe

ashleesun 发表于 2016-5-11 23:27
3.Car telephones have become increasingly popular because they permit people to make or receive bu ...

好的！！！理解了 真心感谢！