题目

Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using in a good way. Here are some rules to make sure you are safe and have fun on the Internet.    ● Make rules for Internet use with your parents. For example, when you can go online, for how long and what activities you can go online.    ● Don’t give your password （密码） to anyone else, and never leak out the following information---your real name, home address, age, school, phone number or other personal information.     ● Check with your p如果(x-5)2=5-x，那么x的取值范围是（　　） A、x≤5B、x＜5C、x≥5D、x＞5