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文件名称:psat考试试题及答案.doc
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psat考试试题及答案

一、单项选择题(每题2分,共10题)

1.Whichofthefollowingisaprimenumber?(A)4(B)9(C)7(D)15

答案:C

2.Thesolutiontotheequation2x+5=13is(A)4(B)3(C)2(D)1

答案:A

3.Whatistheareaofasquarewithsidelength5?(A)10(B)15(C)20(D)25

答案:D

4.Ifacirclehasaradiusof3,itscircumferenceisapproximately(A)18.84(B)9.42(C)28.26(D)113.04

答案:A

5.Whichofthefollowingfractionsisequivalentto0.75?(A)1/4(B)3/4(C)1/2(D)2/3

答案:B

6.Thesumoftheinterioranglesofatriangleis(A)90°(B)180°(C)270°(D)360°

答案:B

7.Ify=3x-2andx=4,theny=(A)10(B)12(C)14(D)16

答案:A

8.Arectanglehasalengthof8andawidthof3.Itsperimeteris(A)22(B)24(C)16(D)11

答案:A

9.Whatisthenextnumberinthesequence:2,4,8,16,(A)32(B)24(C)18(D)30

答案:A

10.Whichofthefollowingisaninteger?(A)1.5(B)2(C)1/3(D)0.7

答案:B

二、多项选择题(每题2分,共10题)

1.Whichofthefollowingnumbersaredivisibleby3?(A)6(B)9(C)12(D)15

答案:ABCD

2.Thefollowingarepolygons:(A)triangle(B)square(C)circle(D)rectangle

答案:ABD

3.Whichofthefollowingexpressionsareequalto5x+10?(A)5(x+2)(B)10+5x(C)5(x-2)(D)3x+2x+10

答案:ABD

4.Whichofthefollowingareevennumbers?(A)4(B)7(C)10(D)16

答案:ACD

5.Arighttrianglecanhavesideswithlengths(A)3,4,5(B)5,12,13(C)1,1,1(D)6,8,10

答案:ABD

6.Whichofthefollowingequationsrepresentastraightline?(A)y=2x+1(B)x2+y2=4(C)y=3x-2(D)2x-3y=6

答案:ACD

7.Whichofthefollowingarefactorsof24?(A)1(B)2(C)3(D)4

答案:ABCD

8.Whichofthefollowingareunitsoflength?(A)meter(B)kilogram(C)centimeter(D)inch

答案:ACD

9.Whichofthefollowingnumbersarelessthan0?(A)-1(B)0(C)-2(D)1

答案:AC

10.Whichofthefollowingaretypesofangles?(A)acute(B)obtuse(C)straight(D)circular

答案:ABC

三、判断题(每题2分,共10题)

1.Theproductoftwonegativenumbersispositive.(True/False)

答案:True

2.Atriang