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快来帮助他们吧

回答别人的问题，还能够进一步加深自己对题目和解决方案的理解。
利人利己何乐而不为呢？：）

[阅读]RC-6dgockCourseReading

The passage suggests that as a way of addressing the problem of different resource distribution in the preindustrial world, the practice of vertical economy differed from the use of long-distance trade networks in that vertical economy allowed

312人做过-1条讨论

goudanli 2645天前
定位点：
In most of the preindustrial world, the problem of different resource distribution was resolved by long-distance trade networks over which the end consumer exercised little control. Although the peoples of the Andean highlands participated in such networks, they relied primarily on the maintenance of autonomous production forces in as many ecological zones as possible. The commodities produce
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[阅读]RC-e8go8kCourseReading

The passage suggests which of the following about urbanization in Switzerland and the United States by 1920?

335人做过-1条讨论

goudanli 2646天前
Switzerland and the United States diverged in the degree to which the expansion of industry coincided with the degree of urbanization
说明两个国家工业化和城市化发展的一致程度不同，后面又说瑞士城市化低，说明瑞士一致程度低，那就可以infer美国一致程度较高，推断出美国城市化应该较高
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[阅读]RC-9agp9kCourseReading

The author of the passage would be most likely to agree that the "caution" (line 29) urged by de Ricqlès regarding claims about dinosaur physiology was

353人做过-2条讨论

susu1218 2645天前
蛤 为什么内容不全。。。
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susu1218 2647天前
首先，看到caution定位到附近的文段。“These characteristics, first recognized in the 1930's, were documented in the 1960's by de Ricqlès, who found highly vascularized, fibro-lamellar bone in several groups of dinosaurs. In the 1970's, Bakker cited these characteristics as evidence for the warm-bloodedness of dinosaurs. ”从这句我们可以知道，恐龙的骨头特征是R这个人发现的，但是把这些特征直接当做热血动物的是Bakker.
“Although de Ricqlès urged caution, arg
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[数学]DS-8dgvck其它

1/X<1/X^3 ?

(1) X>0

(2) X<1

247人做过-2条讨论

leixintong 2656天前
为啥不是C
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[语法]SC-d4gelk其它

Found only in the Western Hemisphere and surviving through extremes of climate, hummingbirds’ range extends from Alaska to Tierra del Fuego, from sealevel rain forests to the edges of Andean snowfields and ice fields at altitudes of 15,000 feet.

3609人做过-2条讨论

yuzhengzj 2556天前
B absolute phrase.
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GMATlily 2683天前
根据found 修饰的主语 hummingbird 排除a。
c选项 没有谓语。
d选项 hummingbird 和their range 两个主语重复
e选项，are found 和 survive 两个动词之间没有连词。
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[语法]SC-02gssk其它

The broader, classical definition is that a service is an intangible something that cannot be touched or stored.

Yet electric utilities can store energy, and computer programmers save information electronically.

Thus, the classical definition is hard to sustain.

第二句和第三句的关系是：

1187人做过-1条讨论

kmr5844 2734天前
Thus是很重要的提示词，是由第二句的解释得到的第三句的结论。2、3是因果一体来反驳论点（由yet看出）
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[数学]DS-42gvqkGWD

A store sells milk in cartons of two sizes, one-half gallon and one-quarter gallon. If the store sold a total of 300 cartons of milk yesterday, how many gallons of milk did it sell yesterday?

(1) Yesterday the store sold 120 one-quarter-gallon cartons of milk.



(2) Yesterday the store sold 90 gallons of milk in one-half-gallon cartons.

268人做过-1条讨论

dawn王 2741天前
感觉是选D 但又说出来原因啊 怎么推导出来的？
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[数学]PS-57gvbk其它

257人做过-2条讨论

popllia 2727天前
你写反了，（2x+1）(3x+5) 是对的，求一元一次方程你错了。3x+5=0， x就是=-5/3
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Ca201ine 2837天前
为什么我算出来是 -1/2 和- 3/5 （2x+1）(3x+5) gg
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[阅读]RC-e8gjtkCourseReading

It can be inferred that the "ownership gap" (see highlighted text) would be narrowed if which of the following were to occur?

923人做过-2条讨论

GDEMON 2850天前
问题：以下哪个选项能使得文章的高亮处的gap缩小 首先文章中的ownership gap指的是国家人口的17%是少数民族 但是自主营业的人口中只有4%的是少数民族 这两者之间的差距就是文章的所提的gap 简而言之就是少数民族自主营业的很少都是给别人打工 D选项的意思就是17%的少数民族中有10%以上都是自主营业 那么很显然 这个gap就被缩小了 希望能回答你的问题
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[阅读]RC-77gjykCourseReading

The passage is primarily concerned with

886人做过-2条讨论

YingZhao 2896天前
我明白了，全文都在提供建议，并且观点看法不等于建议
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YingZhao 2896天前
evaluate不包含小建议吗？评价我默认了含有提出自己的观点想法=含有建议
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