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Yihan D.
Student at Emory University, Goizueta Business School
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TOEFL
TutorMe
Question:

How to solve the problem that even though you read the article, you cannot memorize the points?

Yihan D.
Answer:

Find the structure and purpose of the article. For example: Colonization is one way in which plants can change the ecology of a site. 【Raise definition of colonization】 Colonization is a process with two components: invasion and survival. 【Define definition of colonization】 The rate at which a site is colonized by plants depends on both the rate at which individual organisms (seeds, spores, immature or mature individuals) arrive at the site and their success at becoming established and surviving. 【Introduce one aspect of Colonization: Speed】 Success in colonization depends to a great extent on there being a site available for colonization – a safe site where disturbance by fire or by cutting down of trees has either removed competing species or reduced levels of competition and other negative interactions to a level at which the invading species can become established. 【Introduce the important factor of colonization: Site】 For a given rate of invasion, colonization of a moist, fertile site is likely to be much more rapid than that of a dry, infertile site because of poor survival on the latter. A fertile, plowed field is rapidly invaded by a large variety of weeds, whereas a neighboring construction site from which the soil has been compacted or removed to expose a coarse, infertile parent material may remain virtually free of vegetation for many months or even years despite receiving the same input of seeds as the plowed field. 【Explanation+Demonstrate that site influences colonization】

SAT
TutorMe
Question:

There are 1000 same bottles, and 999 of them is water, one is poisonous. Now you have 10 rats and one week, how do you determine which one is poisonous?

Yihan D.
Answer:

Since 2^10=1024, 10 rats can testify which one of 1000 bottles is poisonous. To make it simple to explain, the logic process is similar to use 3 rats to testify 8 bottles: 000=0 001=1 010=2 011=3 100=4 101=5 110=6 111=7 One place signifies one rat. 0-7 signify 8 bottles. Use 1, 3, 5,7 bottles to mix up and give it to rat 1, then 2,3,6,7 bottles to mix up to give it to rat 2, then 4,5,6,7 bottles to mix up and give it to rat 3. If one of these 3 rats die, then we use 1 to notify it. If rat 1 dies, rat 2 not dies, rat 3 dies, then 101=5 bottle is poisonous.

Mandarin
TutorMe
Question:

What is the uniqueness of Mandarin compared to other languages?

Yihan D.
Answer:

One interesting fact about Mandarin: When you read "larynx, tongue, tooth,lip" in Mandarin, you actually use these physiological features separately. For example, when you read "larynx" in Mandarin, you produce your voice through your larynx.

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