傅科发现地球上的摆在摆动时会发生( )现象。_刷题宝

题干

傅科发现地球上的摆在摆动时会发生( )现象。

A：速度加快

B：方向偏转

C：摆幅增大

上一题下一题 0.0难度选择题更新时间:2016-04-18 04:48:17

答案(点此获取答案解析）

B

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在以下哪些情况下可将物体看成质点（）

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阅读下列短文，从每题所给的四个选项（A/B/C/D）中选出最佳选项。

Ask Dr. Emily for Advice on Your Problem

Dear Dr. Emily,
I started Grade 7 this year and we have this project in our school: everyone in Grade 7 gets a little partner（伙伴）. It means that we each have a partner from Grade 1. We need to take them to school and help them know more about the school. I ‘m OK with children but I just can't make friends with them. All my classmates do better than me. I have a bad temper and I don't want to scare them away. I need some advice.
Kirsty,12

Dear Kirsty,
I think what your school does is a great way to learn how to take care of others. First, remember that the children from Grade 1 are much younger than you. They don't know as much as you. Second, remember not to be angry when things go wrong. You may scare them. Last but not least, keep in mind that kids love to try new things. So try to teach them something new and they can be interested in it. For example, you can play new interesting games with them. I hope things will be better for you soon.
Emily

同类题3

歌曲，《我相信中》唱到：想飞上天/和太阳肩并肩/世界等着我去改变/想做的梦/从不怕别人看见/在这里我都能实现/大声欢笑/让你我肩并肩/何处不能欢乐无限/抛开烦恼/勇敢的大步向前/我就站在舞台中间/我相信我就是我……给我们的启示是（）

①我们要对自己充满信心

②展现自己的风采，永远的接纳自己的一切

③欣赏自己，为自己感到骄傲，珍视自己的价值

④欣赏自己满意的地方，就是骄傲自大，目中无人

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李叔叔用1.8元钱买了50个螺丝钉，照这样计算，买250个螺丝钉要多少元？

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观察图所示实验，回答以下问题：

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