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2021美国学术能力评估考试(SAT)真题模拟04-09

发布时间: 2021-04-09 06:13:03

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1、Four points lie on a circle. How many different triangles can be drawn with three of these points as vertices?(单选题)

A. 4

B. 5

C. 6

D. 7

E. 8

试题答案:A

2、HWOCRTEMP_ROC70In the figure above, if the coordinates of points P and Q are multiplied together, the result will be closest to which of the following points?(单选题)

A. A

B. B

C. C

D. D

E. E

试题答案:A

3、Three fair coins are tossed at the same time. What is the probability that all three coins will come up heads or all will come up tails?(单选题)

A. 1/8

B. 1/6

C. 1/4

D. 1/3

E. 3/8

试题答案:C

4、Geological evidence suggests that the earth’s magnetic polarity has switched back and forth many times over the millennia; such ______in the magnetic field may affect the ability of our planet to ward off cosmic radiation.(单选题)

A. intensifications

B. justifications

C. records

D. correlations

E. fluctuations

试题答案:E

5、Which of the following must be true?
I. a Φ b=b Φ a
II. a Φ (a + 1) = a2
III. a/2 Φ b/2 = aΦb/2(单选题)

A. I only

B. II only

C. III only

D. I and III only

E. II and III only

试题答案:B

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