题干

同学们好,从八年级开始学习物理,有老师的引导,坚持课前预习,课后复习,上课专心听,善于观察,乐于动手,每节课学有所得,至今学有所成。现在平放在你桌面中央的物理答题卡将会展示你的理想成绩!现在请你估计或者测量看看,答题卡对桌面有压力,桌面的受力面积约是(   )

A:6 m2

B:600cm

C:609 cm2

D:609

上一题 下一题 0.0难度 选择题 更新时间:2017-12-07 09:04:00

答案(点此获取答案解析)

C

同类题5

任务型阅读

    In the digital age, copying someone else's words is easy, but getting caught copying is even easier. When Melania Trump recently spoke at the Republican convention, she used some of the same words that Michelle Obama had used at the Democratic convention in 2008. Within hours, news spread around the world with the claim that Melania Trump had plagiarized Michelle Obama's speech. Students and teachers at universities in the U. S. and elsewhere were shocked.____

    What is plagiarism?

    ____That person could also be called a "literary thief' or a" plagiarist'.

    Why is plagiarism a serious problem?

    It's our own worst fear, to have that thing that we created stolen from us, and it's the same as our words. That thing that we created is essential to who we are.____Academics are especially aware of the nature of plagiarism because their work is essentially the creation of ideas and putting them into words.

    ____

    One of the possible punishments for' plagiarism at U. S. universities is dismissal from the school. Students may fail a course or be given a letter of censure(谴责)that stays on their school record, Professors or researchers who plagiarize may damage or end their careers.

    Plagiarism is easy to find

    Before the digital age we live in, plagiarizing was harder. You had to write out the words you copied. But now anything can be copied and pasted. In the past, teachers would have to work hard to prove that work was copied.____The plagiarism checking software programs used by many students and universities include Turnitin, Grammarly, Duplichecker, and Ithenticate. Nobody is going to get away with it.

A. How to avoid plagiarism

B. Consequences of plagiarism

C. Stealing our words is as serious as if stealing our child.

D. Nowadays, some software programs will help you avoid plagiarism

E. Plagiarism is to copy someone else's written work without giving them credit.

F. But nowadays, all you have to do is run a paper through a plagiarism detection software.

G. They learn from their early years in school that copying another writers words is wrong.