7月5日换题库了——7月GMAT逻辑新题汇总（21-30题）

MCFLY

21. 【shrud】

一种shrud 有毒，不管是成熟的leaf还是幼嫩的，有一个动物的一个品种，就是吃这个leaf  然后1个月什么的也没啥事

问：你以下哪种论点支持了这种现象。。。。

选择：

A:这个leaf一定要在阳光下才会toxic（因为文中好像说道了这个虫子会躲在这个叶子下面）

22.【鸟迁徙】

GWD的，那道候鸟迁徙吃蛋，但蛋数量下降，对鸟没影响，因为鸟可以停留的时间长。

问：削弱

狗主答案：鸟到达目的地晚影响生育质量的

23. 【吃肉和吃谷物】

某国人们富裕了就吃更多的肉了.一斤肉要若干斤谷物才能养成.此国还会更富裕，但谷物生产不会增加,于是有人说要开始进口谷物．　

问：什么削弱此建议.　
狗主答案：富裕是是由于少数及有钱的人造成的.　他们食肉量不会再增加,　所以整体食肉量也不会再过于增加.

24．【鹿】

某国死了不少鹿，它们都是得一种病死的.这种病有是由某种化学物质造成的.从十年前开始,农民发现酸雨伤害作物便洒石灰来中和．可惜石灰会使作物产生那种特定的化学物质.于是便责怪农民害死了鹿们．　

问：什么可以证明?　
狗主答案：酸雨杀死了鹿吃的野生植物,　它们就只好去吃农作物了.

25. 【砖】

一种新的brick代替real brick。A说那种新的brick还是能看出来，不是real brick。B反驳A，说A之所以这么说是因为她心里是先这么想那种brick不是real brick。问B加强

bastencool

thanks @##

MCFLY

28.【电台音乐】
电台放音乐，说原来一次连续放八首歌然后插一段广告，现在连续放十首才插广告，说因此广告收入要下降。
削弱题还是评估题。
狗主答案：每首歌的长度有没有变短。

29.【BF】
有个BOLDERFACE答案应该是后面论证前面的，讲的是飞机涂料神马的。

30.
During the month of May, crabs arrive on Delaware’s beaches to lay eggs.  Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds.  Delaware’s crab population has declined recently.  This decline, however, poses no serious threat to the migrating shorebird populations:  by remaining longer in Delaware, the birds will be able to eat enough crab eggs to allow them to complete their migration.

Which of the following, if true, most seriously weakens the argument?

A.    No other food available to the birds on Delaware’s beaches is as nutritious and accessible as are crab eggs.
B.    The decline in the number of crabs on Delaware’s beaches is due to the harvesting of crabs by humans.
C.    There are more crabs on Delaware’s beaches than in any other area that the migrating birds pass through.
D.    The crabs do not conceal their eggs.
E.    The earlier in the season the shorebirds complete their migration, the more likely they are to breed successfully.

答案：E

MCFLY

26. 【阿司匹林】
阿司匹林厂商发现很多没有小孩的年轻人不喜欢买他们生产的一种儿童可接触的瓶子，然后阿士匹灵厂商决定重新投资那种 不需要考虑儿童接触的瓶子
问：应该评估的因素。
狗主答案：顾客群会不会变那个。
        
27. GWD17-Q23:
Because visual inspection cannot reliably distinguish certain skin discolorations from skin cancers, dermatologists at clinics have needed to perform tests of skin tissue taken from patients.At Westville Hospital, dermatological diagnostic costs were reduced by the purchase of a new imaging machine that diagnoses skin cancer in such cases as reliably as the tissue tests do.Consequently, even though the machine is expensive, a dermatological clinic in Westville is considering buying one to reduce diagnostic costs.

Which of the following would it be most useful for the clinic to establish in order to make its decision?

A.Whether the visits of patients who require diagnosis of skin discolorations tend to be shorter in duration at the clinic than at the hospital
B.Whether the principles on which the machine operates have been known to science for a long time
C.Whether the machine at the clinic would get significantly less heavy use than the machine at the hospital does
D.Whether in certain cases of skin discoloration, visual inspection is sufficient to make a diagnosis of skin cancer
E.Whether hospitals in other parts of the country have purchased such imaging machines