在水平面上以72 km/h的速度运动的物体，其时刻开始做匀减速直线运动，其加速度 发布时间：2017-05-09 03:17 │ 来源：www.tikuol.com 题型：选择题 问题： 在水平面上以72 km/h的速度运动的物体，其时刻开始做匀减速直线运动，其加速度大小为5 m/s2，该物体在6 s内的位移大小为( )A．30 mB．40 mC．50 mD．60 m
题型：选择题 完形填空。 Each morning, I walked past a security guard (保安). He 1 everyone that walked by him. I 2 how he knew so many people by their first names. The first few times I saw him. I didn't say hello back to him 3 he greeted me. I was lost in my own world. On Monday he asked, "How was your 4 ?" I told him about my visit to my sick, elderly mother. He told me how 5 he was for my mother's sickness. As I walked away, I realized I did not even know his 6 . The following day, I asked,"What's your name?" He answered,"Gary." I said, "I'm Deborah." After that, we talked a couple of times a week. We 7 stories about our weekends, our dreams, and our families. Gary got offered a new job and moved 8 . It has been years since I last spoke to him, yet the memory feels like yesterday. I look back at what became a friendship of sharing stories from the heart. When you say 9 to a stranger(陌生人) you become a pebble (鹅卵石) thrown into a lake. With each ripple (涟漪) you create, you spread 10 that continues to give. ( )1. A. watched ( )2. A. complained ( )3. A. when ( )4. A. visit ( )5. A. afraid ( )6. A. age ( )7. A. wrote ( )8. A. away ( )9. A. yes ( )10. A. news B. believedB. admired B. until B. weekend B. glad B. job B. heard B. over B. hello B. virus C. thanked C. expectedC. before C. mother C. sorry C. name C. read C. on C. no C. love D. greeted D. forgot D. and D. sickness D. surprised D. family D. shared D. in D. goodbye D. sadness 查看答案
题型：选择题 项目教育是新工人被分配到项目以后进行的安全教育。下列内容不属于项目级安全教育内容的是（）。A、施工现场安全管理规章制度B、安全生产方针、政策、法规C、安全生辰纪律和文明生产要求D、建安工人安全生产技术操作一般规定 查看答案