您所在的当前位置：初中物理试题 >

速度与机械运动

> 下列说法正确（或符合实际情况）的是 A.学校微机室内的电脑显示器长度约为1.5m B.人正常步行的速度约为1m/s C.自行车轮子的直径约为1.5m D.一棵大白菜的质量约为10kg

问题：

发布时间：2024-09-07

下列说法正确（或符合实际情况）的是

A.学校微机室内的电脑显示器长度约为1.5m
B.人正常步行的速度约为1m/s
C.自行车轮子的直径约为1.5m
D.一棵大白菜的质量约为10kg

参考答案：

提问用户：7w***CxJ

可能感兴趣的题目：

1 读我国某农产品产量分布示意图6,回答14～15题。小题1:该农产品最可能是 A．冬小麦 B．水稻 C．棉花 D．橡胶小题2:该农作物在世界的主要产区有 ①埃及 ②泰国 ③澳大利亚 ④乌兹别克斯坦 A．①② B．①②③ C．①④ D．③④
2 关于非金属元素Si、N、S、Cl的叙述，正确的是（） A．通常情况下，它们的单质均为气体 B．它们在自然界中都存在游离态 C．它们都有对应的含氧酸 D．每种元素都只有一种氧化物
3 It is our daily decisions, rather than our abilities, ______ show what we truly are. A．which B．who C．what D．that
4 若点A（x，y）是300°角终边上异于原点的一点，则 y x 的值为______．
5 利用“嫦娥一号”月球卫星，探测月球表面有开发利用价值的钛、铁等14种元素的含量和分布，这是( ) A．地理信息系统在环境监测领域的应用 B．全球定位系统在野外测绘领域的应用 C．遥感技术在资源调查领域的应用 D．“数字月球”在环境资源管理领域的应用
6 已知程序如图所示，则输出结果S=______．
7 The parents are ________ by law to send their children to school. A．demanded B．required C．requested D．called
8 完形填空。 On a cold winter day, I waited in line to see my hero, Jack Canfield, the author of The Success Principles, who was going to deliver a speech on his new book. During his talk, Jack 1 his wallet, pulled out a hundred-dollar bill, and said, ""Who wants this?" 2 shot up in the audience; people leaned forward to see whom Jack would 3 . But I jumped up, ran up the 4 to the stage, and grabbed the bill. As I was launching myself in the air, 5 raced through my mind- was I about to be humiliated (羞辱) in front of 800 people? Would they 6 security guards and take me from the stage? 7 my desire for bold (大胆的)action was louder than any 8 voice. As I got the bill from his hand, he said, "That"s it! We can"t wait for the 9 to come to us. We must take 10 to create what we want!"" After his talk, I 11 to formally meet Jack and boldly asked for his personal e-mail address. Over the next months, I sent him emails 12 my points of view and dreams with him. He kindly e-mailed back lots of encouragement. But my life got busy 13 other things. I stopped e-mailing Jack. A year later, my dreams had worn away. I thought Jack would inspire me into action, like a giant arrow that would show me the way. I e-mailed him, and then again - but got no 14 . As I sat down at my computer to 15 my e-mails, I 16 woke up. What was I doing? I was waiting! Now I remembered the crowd, most likely 17 that hundred-dollar bill, while they sat glued to their chairs. Usually we all have a "Jack" for whom we wait - whether it"s a person, a place or a thing. We 18 believe the gifts of life are just around the corner, and that everything will come in a(n) 19 way. So we don"t try. We 20 . But as Wayne Gretzky said,"You"ll always miss 100% of the opportunities you don"t take!" So I stopped waiting and started my writing career. Now what are you waiting for? ( )1. A. brought in ( )2. A. Cheers ( )3. A. offer ( )4. A. path ( )5. A. thoughts ( )6. A. ask ( )7. A. And ( )8. A. noisy ( )9. A. opportunities ( )10. A. step ( )11. A. expected ( )12. A. stating ( )13. A. with ( )14. A. news ( )15. A. check ( )16. A. gradually ( )17. A. desiring ( )18. A. particularly ( )19. A. difficult ( )20. A. give up B. reached for B. Shouts B. trust B. road B. opinions B. call B. So B. doubtful B. consequences B. measure B. tried B. describing B. in B. message B. examine B. suddenly B. claiming B. honestly B. impressive B. put up C. took over C. Heads C. like C. steps C. ideas C. demand C. But C. meaningful C. results C. way C. permitted C. presenting C. about C. response C. inspect C. immediately C. begging C. falsely C. early C. take up D. handed in D. Hands D. choose D. route D. plans D. order D. Or D. helpful D. aims D. action D. managed D. sharing D. over D. reaction D. review D. slowly D. dreaming D. correctly D. natural D. set up
9 甲、乙两个物体的质量相等，以相同的初速度在粗糙的水平面上滑行，甲物体比乙物体先停下来.下列说法正确的是（） A．甲物体受的冲量大 B．乙物体受的冲量大 C．两物体所受的冲量一样大 D．无法比较
10 右图为我国北方一个村庄四种农产品产值比重图，辨析并回答5～　6题。小题1:该村的农业产值比重构成不可信，不可信的农产品项目可能是： A．苹果 B．小麦 C．乳产品 D．柑橘小题2:该村庄农业发展的主导区位因素为： A．科技 B．政策 C．劳动力 D．市场