gre考试试题及答案大全解析
一、单项选择题（每题2分，共10题）
1.Whichofthefollowingisaprimenumber?(A)4(B)6(C)7(D)9
答案：C
2.If\(x+3=5\),then\(x=\)(A)1(B)2(C)3(D)4
答案：B
3.Theareaofasquarewithsidelength\(a\)is(A)\(2a\)(B)\(a^{2}\)(C)\(4a\)(D)\(a+a\)
答案：B
4.Whatisthevalueof\(\cos0^{\circ}\)?(A)0(B)1(C)-1(D)\(\frac{1}{2}\)
答案：B
5.Whichofthefollowingisequivalentto\(2(x+3)\)?(A)\(2x+3\)(B)\(2x+6\)(C)\(x+6\)(D)\(x+3\)
答案：B
6.Inarighttriangle,ifonelegis3andthehypotenuseis5,thentheotherlegis(A)2(B)4(C)6(D)8
答案：B
7.If\(y=3x-1\)and\(x=2\),then\(y=\)(A)5(B)4(C)3(D)2
答案：A
8.Thesumoftheinterioranglesofatriangleis(A)\(90^{\circ}\)(B)\(180^{\circ}\)(C)\(270^{\circ}\)(D)\(360^{\circ}\)
答案：B
9.Whatistheslopeoftheline\(y=2x+1\)?(A)1(B)2(C)3(D)4
答案：B
10.If\(a=4\)and\(b=2\),then\(\frac{a}{b}=\)(A)1(B)2(C)3(D)4
答案：B
二、多项选择题（每题2分，共10题）
1.Whichofthefollowingnumbersareeven?(A)2(B)3(C)4(D)5
答案：AC
2.Thefollowingarequadraticequations?(A)\(x^{2}+2x+1=0\)(B)\(x+1=0\)(C)\(2x^{2}-3x+4=0\)(D)\(3x-2=0\)
答案：AC
3.Whichofthefollowingshapeshavefoursides?(A)Square(B)Triangle(C)Rectangle(D)Rhombus
答案：ACD
4.Factorsof12are(A)1(B)2(C)3(D)4
答案：ABCD
5.Whichofthefollowingfunctionsarelinear?(A)\(y=3x+1\)(B)\(y=x^{2}+1\)(C)\(y=2x\)(D)\(y=\frac{1}{x}\)
答案：AC
6.Anglesinaparallelograminclude(A)Acuteangles(B)Obtuseangles(C)Rightangles(D)Straightangles
答案：ABC
7.If\(x0\)and\(y0\),whichofthefollowingexpressionsarepositive?(A)\(x+y\)(B)\(x-y\)(C)\(xy\)(D)\(\frac{x}{y}\)
答案：ACD
8.WhichofthefollowingarePythagoreantriples?(A)(3,4,5)(B)(5,12,13)(C)(1,2,3)(D)(8,15,17)
答案：ABD
9.Whichofthefollowingcanbeusedtorepresenttheperimeterofarectanglewithlength\(l\)andwidth\(w\)?(A)\(2(l+w)\)(B)\(l+w\)(C)\(2l