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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 it is 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 give out the following information—your real name, home address, age, school, phone number or other personal information. Check with your parents before giving out a credit card(信用卡) number. Never send a photo of yourself to someone by e-mail unless your parents say it’s OK. Check with your parents before going into a chat room. Different chat rooms have different rules and attract different kinds of people. You and your parents ought to make sure it’s a right place for you. Never agree to meet someone you met on the Internet without your parents’ permission(允许). Never meet anyone you met online alone. Always remember that people online may not be who they say they are. Treat everyone online as strangers. If something you see or read online makes you uncomfortable, leave the site. Tell a parent or teacher right away. Treat other people as you’d like to be treated. Never use bad language. Remember — not everything you read on the Internet is true. 小题1: It’s good for children to ______ on the Internet. A. give password to others      B. get useful knowledge and information C. give out a credit card number 小题2: The writer tells children to ______. A. send their photos to him     B. make rules for Internet use with parents C. believe everything they read on the Internet 小题3: According to the passage, if your parents don’t agree, never ______. A. read anything on the Internet     B. relax in your free time C. have a face-to-face meeting with anyone you met online 小题4: What should NOT be done when you are on line? A. Using bad language.    B. Leaving the site if you feel uncomfortable. C. Treating everyone online as strangers. 小题5: The main idea of this passage is about ______. A. how to use computers         B. information on the Internet         C. Internet safety rules
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A.
供不应求
B.
自身包含的价值量大
C.
耗费的劳动时间多
D.
迎合了人们的消费心理
【判断题】3岁幼儿能够辨别相似颜色。
A.
正确
B.
错误
【单选题】电子商务的技术特征是指其必须以现代网络技术为支撑,打破了传统商务活动的时空概念,以全国或者全球市场为经营市场,具有()。
A.
高技术性
B.
节约成本的特性
C.
便于沟通
D.
便捷性和协调性
【简答题】2018年 3月,某农场种植小麦120公顷、玉米100公顷,共发生直接人工费用60 000元,其中,小麦人工费用为35 000元,玉米人工费用为25 000元;使用农药总计8 500元,其中小麦使用了4 500元,玉米使用了4 000元;使用化肥总计12 000元,其中小麦使用了7 000元,玉米使用了5 000元;施肥、喷洒农药共发生机械作业费10 000元,其中小麦6 500元,玉米3 500...
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【单选题】下列元素中,形成化合物时共价倾向较大的是
A.
Na
B.
Li
C.
Ca
D.
Mg
【判断题】当水银仪器破损时,应立即将洒落的全部水银收集起来,并在残迹处洒上硫磺粉。
A.
正确
B.
错误
【多选题】美食的形态之美主要包括以下哪些?
A.
自然形态之美
B.
几何形态之美
C.
象形形态之美
D.
完整形态之美
【单选题】在同一桌上绘画的幼儿,其想象的主题往往雷同,这说明幼儿想象的特点是()。
A.
想象无预定目的,由外界刺激直接引起
B.
想象的主题不稳定,想象方向随外界刺激的变化而变化
C.
想象的内容零散,无系统性,形象间不能产生联系
D.
以想象过程为满足,没有目的性
E.
2017年春试卷0213
F.
选择
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