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