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2021美国学术能力评估考试(SAT)真题模拟08-17

发布时间:2021-08-17 07:20:02

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1、HWOCRTEMP_ROC40JK, shown above, is 20.25 inches long. If point L is on JK such that JL is equal to 2 x and LK is equal to x 2 + 1, what is the value of x?(单选题)

A. 2.5

B. 2.75

C. 3.25

D. 3.5

E. 4.5

试题答案:D

2、A square has the same area as a rectangle whose longer side is 2 times the length of its shorter side. If the perimeter of the rectangle is 24, what is the perimeter of the square?(单选题)

A.

B.

C. 32

D.

E. 64

试题答案:B

3、If ax2-bx = ay2 + by, then a/b = ______.(单选题)

A. 1/(x-y)

B. 1/(x + y)

C. (x-y)/ (x + y)

D. (x + y) /(x-y)

E. x/y

试题答案:A

4、In context, which of the following changes best improves sentence 6?(单选题)

A. replacing "They" with "For instance, we are inclined to"

B. replacing "that spirits" with "about spirits"

C. deleting "that live in wood"

D. replacing "have to be" with "would have been"

E. replacing "or" with "but"

试题答案:A

5、If 30% of x is 21, what is 80% of x?(单选题)

A. 28

B. 35

C. 42

D. 48

E. 56

试题答案:E

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