308f305f3057306e304b305e304f306f304d308730463068306b3059309330673044307e3059。304b305e304f306f父、母、3042306d、304a306830463068、304a3070304230553093、305d30573066308f305f3057306e六人30673059。304a3058304430553093306f八年307e3048306b306a304f306a308a307e3057305f。30613061306f30793093305430573067、母306f小学30533046306e305b3093305b304430673059。3042306d306f二年307e3048306b大学3092305d3064304e3087304630573066、今、30683046304d30873046306e304b3044305730833067306f305f3089304430663044307e3059。一人3067304b304430573083306e308a30873046306b3059309330673044307e3059。304a306830463068306f十七305530443067、308230463059305030533046305330463092305d3064304e308730463057307e3059。3044307e、大学3078306f3044308b305f3081306b30443063305730873046305130933081304430793093304d30873046305730663044307e3059。30573087304630893044304430573083306b306a308a305f304430683044306330663044307e3059。304a3070304230553093306f毎日30443048306730c630ec30d33092見305f308a、本3092308830933060308a305730663044307e3059。308f305f3057305f3061306f毎3070309330573087304f3058306e304230683044306330573087306b30c630ec30d33092307f305f308a、304a306130833092306e30933060308a3057306a304c30893044308d3044308d306f306a3057307e3059。日308830463073306b306f父306e車30673042305d3073306b行3063305f308a、30483044304c3092見306b行3063305f308a3059308b3053306830823042308a307e3059。3068304d3069304d30573093305b3064306e人30843068308230603061304c3042305d3073306b来307e3059。306a306430843059307f306b306f307f3093306a3067308a3087305330463057307e3059。308f305f3057305f3061306f毎日305f306e3057304430673059。304a306d304830553093306f304d308730463068306b3059309330673044307e3059304b。（）

308f305f3057306e304b305e304f306f304d308730463068306b3059309330673044307e3059。304b305e304f306f父、母、3042306d、304a306830463068、304a3070304230553093、305d30573066308f305f3057306e六人30673059。304a3058304430553093306f八年307e3048306b306a304f306a308a307e3057305f。30613061306f30793093305430573067、母306f小学30533046306e305b3093305b304430673059。3042306d306f二年307e3048306b大学3092305d3064304e3087304630573066、今、30683046304d30873046306e304b3044305730833067306f305f3089304430663044307e3059。一人3067304b304430573083306e308a30873046306b3059309330673044307e3059。304a306830463068306f十七305530443067、308230463059305030533046305330463092305d3064304e308730463057307e3059。3044307e、大学3078306f3044308b305f3081306b30443063305730873046305130933081304430793093304d30873046305730663044307e3059。30573087304630893044304430573083306b306a308a305f304430683044306330663044307e3059。304a3070304230553093306f毎日30443048306730c630ec30d33092見305f308a、本3092308830933060308a305730663044307e3059。308f305f3057305f3061306f毎3070309330573087304f3058306e304230683044306330573087306b30c630ec30d33092307f305f308a、304a306130833092306e30933060308a3057306a304c30893044308d3044308d306f306a3057307e3059。日308830463073306b306f父306e車30673042305d3073306b行3063305f308a、30483044304c3092見306b行3063305f308a3059308b3053306830823042308a307e3059。3068304d3069304d30573093305b3064306e人30843068308230603061304c3042305d3073306b来307e3059。306a306430843059307f306b306f307f3093306a3067308a3087305330463057307e3059。308f305f3057305f3061306f毎日305f306e3057304430673059。3053306e30723068306e304b305e304f306f307f3093306a3067何人30673059304b。（）

20A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、120、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、130、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、140、A、B、C、D、A

(0)D=()B(1)D=()B(2)D=()B(3)D=()B(4)D=()B(5)D=()B(6)D=()B(7)D=()B(8)D=()B(9)D=()B

设A={a,b,c,d},R为A上的关系,R={(a,a),(a,b),(b,d),(c,d)},R2为()? A: {(a,a),(a,b),(b,d),(c,d)} B: {(a,a),(a,b),(b,d),(a,d)} C: {(a,a),(a,b),(a,d)} D: {(a,d),(b,c),(b,d)}

以下集合A={a,b,c,d}上关系，其中（ ）是等价关系。 A: {(a,a),(a,d),(b,b),(b,c),(c,b),(c,c),(d,a) } B: {(a,a),(a,b),(b,a),(b,b),(c,c),(c,d),(d,c),(d,d)} C: {(a,a),(b,b),(b,c),(c,b),(c,c),(d,a),(d,d)} D: {(a,a),(a,b),(b,a),(b,b),(b,c),(c,b),(c,c),(d,d)}

矩形花键标注正确的是 A: N*d*D*B B: N*D*b*B C: d*D*B D: D*d*B

设A={a,b,c,{a,c}},B={a,c,d},则B-A=____,A⊕B=____。 A: {a,c,d}, {{a,c},b,d} B: {d}, {a,c,b,d} C: {d}, {{a,c},b,d} D: {d}, {a,c}

A: A＞B＞C＞D B: D＞C＞B＞A C: D＞B＞A＞C D: C＞A＞B＞D

若 int a=2, b=5; printf(“a=%d,b=%d”,a,b); 输出正确的是：_____。 A: a=2,b=%d B: a=2,b=5 C: a=%%d,b=%%d D: a=%d, b=%d