1、2015年1月sat真題是啥，有答案解析嗎？

三月考試，看看這次的真題，？？

2、五道SAT數學題求詳細解答

In the integer 3589 the digits are all different and increase from left to right. How many integers between 4000 and 5000 have digits that are all different and that increase from left to right?

這是一道填空題，不理解題目意思，求地道翻譯+解答

If the letters L, O, G, I, and C are randomly arranged to from a five-letter "word", what is the probability that the result will be the word LOGIC?

A 1/120 B 1/24 C 1/5 D 1/4 E 1/2

求用Cmn或Pmn的排列組合公式做，要步驟及講解

Three fair coins are tossed at the same time. What is the probability that all three coins will come up heads?

A 1/8 B 1/6 C 1/4 D 1/3 E 3/8

求用Cmn或Pmn的排列組合公式做，要步驟及講解

If I 6-5y I ＞20, which of the following is a possible value of y?

A -6 B -1 C 1 D 3 E -2

求完整步驟

If g(x)＞0 for all real values of x, which of the following could be the function g?

A g(x)=x + 1 B g(x)=x - 1 C g(x)=x^2 + 1 D g(x)=x^2 - 1 E g(x)x^3 + 1

求完整步驟

3、問大家幾道SAT語法題目~~希望大家可以幫我解釋清楚~

[During the Fourth of July weekend in 1947,] about six million peope crowded onto the beach and into the amusements at Coney Island, "America\'s Playground," in Brooklyn, New York.

A.During the Fourth of July weekend in 1947,

D.The Fourth of July weekend in 1947,

正確答案是A但是我的答案是D，請問哪里有問題呢？

A discovery in New Jersey actually contributed to the early economic development of [America and, in 1714, a worker uncovered] a green rock containing copper.

A.America and, in 1714, a worker uncovered

B.America when, in 1714, a worker uncovered

正確答案是B而我選的是A

Some beaches are frequently contaminated by untreated sewage that flows into the [ocean, which can last for several days.]

A.ocean, which can last for several days

E.ocean; the contamination can last for several days

正確答案是E，但是我選的A

希望高手幫忙~~~

4、詳解數學SAT題目。專門術語也翻譯一下

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