What simple machine is a seesaw? A. Lever B. Inclined plane C. Pulley D. Wheel and axle 相关知识点: 试题来源: 解析 A。B 选项斜面是一种倾斜的平面;C 选项滑轮是由轮和绳索组成的简单机械;D 选项轮轴由轮和轴组成。而跷跷板是一种典型的杠杆,以中间的支点为轴,两端的人对跷跷板施加力。
A .I can see a seesaw.B .It is a seesaw 相关知识点: 试题来源: 解析 A 问题询问“你能看见什么?”,正确回答需使用“I can see...”的结构。选项A“I can see a seesaw.”符合语法且内容正确;选项B“It is a seesaw”用于回答“这是什么?”,与问题不符。因此选A。
What is torque? Is it like a seesaw? How can a seesaw be rotational? How is torque related to angular momentum? Determine the magnitude of the torque that the two forces F_1 and F_2 together give around point A, located in (x, y, z). Explanation step by step. ...
Read the full-text online article and more details about "Economics Now Divides the US and Europe ; the Dollar-Euro Rate Is like a Seesaw: What Benefits the US Discomforts Europe and Vice Versa" by Smith, Andreas Whittam - The Independent (London, England), May 26, 2003...
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百度试题 结果1 题目—What can you see? ( ) —___ A. I can see a seesaw. B. It is a seesaw. 相关知识点: 试题来源: 解析 A 【详解】 问句句意:你能看到什么?A我能看到一个跷跷板。B它是一个跷跷板。选项A符合题意,故选A。反馈 收藏 ...
There are many modern inventions that are levers.A pair of scissors is a lever.Also,when you ride on a seesaw (跷跷板) in the playground,you're using a lever.The board rests on a point in the middle.When you push down on one end of the board,the other end goes up. The Wheel an...
Balance is about achieving stability through equal distribution of elements, whether it's in physical weights, emotions, or design. Whereas, harmony involves the arrangement of these elements in a way that is aesthetically pleasing or functional. 7 In physical contexts, balance can be seen in the...
Happy? Interesting? Terrible? Bad?作业设计:1. Read the text.2. Try to retell the diary according to YLs pictures.板书设计:Unit 2 What a day!It was sunny / cloudy / windy / rainy.gowent flyflewseesaw arewerebecomebecame bringbrought教学反思:...
What plane of motion and axis of rotation is being used when nodding your head up and down (Nodding yes)? Planes and Axes: Joint movement involves both a plane of motion and an axis of rotation; there are three of each. The planes of movement are ...