Mind mapping is a creative and logical means of note-taking and note-making that literally "maps out" your ideas.

要求打开文件f：\myfile。dat，并能够写入数据，正确的语句是（ ）。 A: ofstream outfile("f:\\myfile.dat ", ios::in); B: ifstream infile("f:\\myfile.dat", ios::in); C: fstream infile("f:\\myfile.dat ", ios::in | ios::out); D: ifstream infile("f:\\myfile.dat ", ios::out);

要求可打开文件：D:?ile.dat 写入数据，错误的语句是？ A: ifstream infile("D:\file.dat", ios::in); B: fstream infile("D:\file.dat", ios::in); C: ofstream infile("D:\file.dat", ios::out); D: fstream infile("D:\file.dat", ios::in | ios::out);

要求打开文件 d:?ile.dat，可写入数据，正确的语句是（ ）。 A: ifstream infile("d:?ile.dat", ios::in); B: ifstream infile("d:\file.dat", ios::in); C: ofstream infile("d:?ile.dat", ios::out); D: fstream infile("d:\file.dat", ios::in| ios::out);

下列打开文件的语句中，能对打开文件进行写操作的选项包括（ ）。 A: fstream f("file.txt"); B: ofstream f("file.txt"); C: ifstream f("file.txt"); D: ifstream f("file.txt",ios::out);

You pass a co-worker in the hallway and he asks "How are you?". You respond by: A: Telling him that your back has been hurting you and you have a cold B: Saying "Fine, thanks" C: Explaining that you are tired and stressed out in your job D: asking “ Where are you going?”

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" };

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"}