• 2022-06-07 问题

    An analyst does research about hypothesis testing. Which of the following test statistics is most appropriate test statistics for two means based on samples that we believe are dependent A: T-test. B: F-test. C: Chi-square test.

    An analyst does research about hypothesis testing. Which of the following test statistics is most appropriate test statistics for two means based on samples that we believe are dependent A: T-test. B: F-test. C: Chi-square test.

  • 2022-06-15 问题

    145.var t = 10; function test(test){ t = t + test; console.log(t); var t = 3; } test(t); console.log(t); 运行结果是( )?

    145.var t = 10; function test(test){ t = t + test; console.log(t); var t = 3; } test(t); console.log(t); 运行结果是( )?

  • 2022-07-28 问题

    假设有类Test,下列可以正确创建对象的语句是( ) A: Test t=1; B: Test t=new Test(); C: Test t=new Test; D: Test t= Test();

    假设有类Test,下列可以正确创建对象的语句是( ) A: Test t=1; B: Test t=new Test(); C: Test t=new Test; D: Test t= Test();

  • 2022-06-15 问题

    分析下段代码输出结果是 var t = 10;function test(test){ t = t + test; var t = 3; console.log(t); } test(t); A: 6 B: 3 C: 13

    分析下段代码输出结果是 var t = 10;function test(test){ t = t + test; var t = 3; console.log(t); } test(t); A: 6 B: 3 C: 13

  • 2022-07-24 问题

    如下代码定义了一个类Test: class Test { private int y; Test (int x) { y:x; } }现在为Test 类生成一个对象,正确的语句是( )。 A: Test t = new Test( ); B: Test t=new Test(10, 20); C: Test t; D: Test t=new Test(10);

    如下代码定义了一个类Test: class Test { private int y; Test (int x) { y:x; } }现在为Test 类生成一个对象,正确的语句是( )。 A: Test t = new Test( ); B: Test t=new Test(10, 20); C: Test t; D: Test t=new Test(10);

  • 2022-06-15 问题

    ‏var t = 10; ‌‏function test(test){ ‌‏ t = t + test; ‌‏ console.log(t);‌‏ var t = 3; ‌‏} ‌‏test(t); ‌‏console.log(t); ‌‏运行结果是( )?‌‏‌ A: 3 3 B: 3 10 C: NaN 10 D: NaN 3

    ‏var t = 10; ‌‏function test(test){ ‌‏ t = t + test; ‌‏ console.log(t);‌‏ var t = 3; ‌‏} ‌‏test(t); ‌‏console.log(t); ‌‏运行结果是( )?‌‏‌ A: 3 3 B: 3 10 C: NaN 10 D: NaN 3

  • 2022-06-06 问题

    给出如下类定义: public class Test { Test(int i) { } } 如果要创建一个该类的对象,正确的语句是( )。 A: Test t = newTest(); B: Test t = newTest(5); C: Test t = newTest("5"); D: Test t = newTest(3.4);

    给出如下类定义: public class Test { Test(int i) { } } 如果要创建一个该类的对象,正确的语句是( )。 A: Test t = newTest(); B: Test t = newTest(5); C: Test t = newTest("5"); D: Test t = newTest(3.4);

  • 2022-06-15 问题

    假定类Test已定义,test( )为Test类的公有成员函数,t为该类的一个对象,则通过t对象访问成员函数test( )的格式为( )。 A: t.test() B: t.test C: t->test() D: (*t).test()

    假定类Test已定义,test( )为Test类的公有成员函数,t为该类的一个对象,则通过t对象访问成员函数test( )的格式为( )。 A: t.test() B: t.test C: t->test() D: (*t).test()

  • 2022-06-07 问题

    定义类如下:class Test():def __init__(self,name):self.name=namedef show(self):print(self.name)下面代码能正常执行的是 ( ) A: t = Test('张三')t.show() B: t = Test()t.show('张三') C: t = Test()t.show() D: t = Testt.show('张三')

    定义类如下:class Test():def __init__(self,name):self.name=namedef show(self):print(self.name)下面代码能正常执行的是 ( ) A: t = Test('张三')t.show() B: t = Test()t.show('张三') C: t = Test()t.show() D: t = Testt.show('张三')

  • 2022-05-29 问题

    设有泛型类的定义如下class Test<T> { }则由该类创建对象时,使用正确的是? A: Test x = new Test();<table width="77" cellspacing="0" cellpadding="0"><colgroup><tbody><tr class="firstRow">数据添加到文件中; B: Test<int> x = new Test<int>(); C: Test<Object> x = new Test<Object>(); D: Test<T> x = new Test<T>();

    设有泛型类的定义如下class Test<T> { }则由该类创建对象时,使用正确的是? A: Test x = new Test();<table width="77" cellspacing="0" cellpadding="0"><colgroup><tbody><tr class="firstRow">数据添加到文件中; B: Test<int> x = new Test<int>(); C: Test<Object> x = new Test<Object>(); D: Test<T> x = new Test<T>();

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