1、2015年1月sat真题是啥，有答案解析吗？

三月考试，看看这次的真题，？？

2、五道SAT数学题求详细解答

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?

这是一道填空题，不理解题目意思，求地道翻译+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的排列组合公式做，要步骤及讲解

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的排列组合公式做，要步骤及讲解

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

求完整步骤

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

求完整步骤

3、问大家几道SAT语法题目~~希望大家可以帮我解释清楚~

[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,

正确答案是A但是我的答案是D，请问哪里有问题呢？

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

正确答案是B而我选的是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

正确答案是E，但是我选的A

希望高手帮忙~~~

4、详解数学SAT题目。专门术语也翻译一下

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