一小球在离地高H处从静止开始竖直下落，运动过程中受到的阻力大小与速率成正比，下列 发布时间：2017-08-10 22:29 │ 来源：www.tikuol.com 题型：选择题 问题： 一小球在离地高H处从静止开始竖直下落，运动过程中受到的阻力大小与速率成正比，下列图像反映了小球的机械能E随下落高度h的变化规律（选地面为零势能参考平面），其中可能正确的是（ ）
题型：选择题 建设工程监理单位的安全责任有( )。A．在实施监理过程中，发现事故隐患的，应当要求施工单位整改；情节严重的，应当要求施工单位停止施工，并及时报告建设单位B．按照法律、法规和工程建设强制性标准实施监理，对建设工程安全生产承担监理职责C．依照国家有关法律、法规和安全技术规范进行有关机械设备和配件的生产经营活动D．对出租机械设备、施工机具及配件的安全性能进行检测，在签订租赁协议时，应当出具检测合格证明E．审查施工组织设计中的安全技术措施或者专项施工方案是否符合工程建设强制性标准 查看答案
题型：选择题 补全对话 阅读对话，从每题A、B、C、D 四个选项中，选出一个最佳答案完成对话。（5分）A: How was your day off, Tina? B: Oh, it was awful.A: Really? 1 B: Well, we wanted to go camping, but the weather was terrible. 2 A: Oh, that’s too bad. Then what did you do? Did you watch TV at home?B: No. 3 . It was boring.A: Sounds terrible, Tina.B: 4 A: I think I had great fun. I went to the museum and met a famous actor. 5 And I got his autograph.B: That sounds wonderful.小题1:A．What happened?B．Are you OK? C．Can you help me? D．How is the weather?小题2:A．It is raining now.B．It rained all the time.C．It is sunny.D．It was fantastic.小题3:A．We often go there by ship.B．We will go out for a walk.C．We helped mom with the chores.D．We like delicious food.小题4:A．Would you like to go with me?B．When did you get to the museum?C．Why did you meet a famous actor? D．How about your day off, Tony?小题5:A．I’m going to be a nurse.B．I don’t like action movies.C．I can’t stand soap operas.D．I took a photo with him. 查看答案
题型：选择题 下列哪一项为国家核安全局发布的部门规章：（）A、《中华人民共和国民用核设施安全监督管理条例》B、《中华人民共和国核材料管理条例》；C、《核电厂核事故应急管理条例》D、《核电厂质量保证安全规定》 查看答案
