下面哪个不是HTML5新增TYPE属性？ A: type="email" B: type="url" C: type="number" D: type="clock"

下面（）不是有效的变量名 A: _score B: "banana" C: Number D: my-score

German people like to give flowers as gift. Which of the following statement is true about this etiquette? A: German people don't like number "13", so we should avoid number "13" when buying flowers. B: The flowers should be given wrapped. C: German people prefer an even number of flowers D: You can give any types of flowers as gift in Germany

在Java中，"456"属于（ ）类的对象。 A: int B: String C: Integer D: Number

在Java中，"456"属于哪类的对象（ ） A: Integer B: int C: String D: Number

Word中插入数学公式的方法是（）。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"

当输入19，2，21时下列程序运行的结果是 main( ){int a,b,c,max;printf("please scanf three number a,b,c: ");scanf("%d,%d,%d",&a,&b,&c);max=a;if(max<b)max=b;if(max<c)max=c;printf("max is:%d",max);} A: 21 B: max is:21 C: 2 D: max is:2

定义并初始化一个用于存放我们国家的四个直辖市的数组cityName，四个直辖市为：北京，上海，天津，重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };

已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素？ A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])

以下哪个选项是正确的json数据格式： A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}