下列逻辑表达式中，其值为真的是______。 A: A．"b">"ABC" B: B．"THAT">"THE" C: C．9>"H" D: D．"A">"a"

蛋白质变构作用的动力学曲线是（）A.双曲线 B."S"型曲线 C.直线 D. 线团状 A: 双曲线 "S"型曲线 直线 线团状 B: "S"型曲线 C: 直线 D: 线团状

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"

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" };

R 语言中，代表注释语句起始的符号是（ ）。 A: "," B: ";" C: ":" D: " E: "

id选择器使用_______________进行标识，后面紧跟id名。 A: " B: " C: "&" D: "@" E: "$"

下面语句中,正确的是( )。 A: printf("%c ","student"); B: printf("%c ","c"); C: printf("%s ",&a); D: printf("%s ","hello");

C语言空语句是由一个（ ）构成的。 A: 冒号":" B: 分号";" C: 逗号"," D: 句号"."

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"}