Z37摇臂钻床的摇臂回转是靠（）实现。A、电机拖动 B、人工拉动 C、机械传动 D、 发布时间：2017-07-02 04:55 │ 来源：www.tikuol.com 题型：单项选择题 问题： Z37摇臂钻床的摇臂回转是靠（）实现。A、电机拖动B、人工拉动C、机械传动D、自动控制
题型：单项选择题 完形填空。 Stress is the feeling you get when you're really worried about something. This is the kind of worry that troubles you for hours, or even days. It makes you feel 1 , scared, or angry. You may find it difficult to eat and sleep, or you might eat and sleep much 2 than usual. Stressing out will lead to serious problems like heart illness. 3 not all stress is bad for you. The good kind 4 your body and mind alert (机敏的) and can make you perform better, like when you're giving a speech to? your class or running to the finish line. What causes stress? Do you know 5 your dad is worried about the bills (账单), or your mom is unhappy? Because they're stressed out! There are lots of things in your life that 6 cause stress-having too much homework, taking a test in a subject that you are not good 7 , or hearing your parents argue! There are some ways to 8 stress. If you're stressed out, try these quick and easy ways to relax! Take part in sports and out-of-class activities. Try to get at least eight hours of sleep every night. Eat a healthy, balanced 9 that includes all kinds of food. Talk with your close friends, family members or teachers. It'll make you feel better, and 10 may be able to give you advice and help you solve your problem. ( )1. A. calm ( )2. A. more ( )3. A. So ( )4. A. stops ( )5. A. how ( )6. A. can ( )7. A. on ( )8. A. start with ( )9. A. tofu ( )10. A. they B. excited B. most B. Or B. loses B. why B. need B. at B. agree with B. vegetables B. we C. surprised C. better C. And C. keeps C. when C. must C. in C. deal with C. fruit C. she D. upset D. best D. But D. provides D. where D. should D. for D. come up with D. diet D. he 查看答案
题型：单项选择题 脊柱结核的X线表现，下列不正确的是（）A.以骨质破坏和椎间隙狭窄为主 B.中心型者椎体压缩成楔形 C.中心型者不累及相邻椎体 D.边缘型者骨质破坏集中在椎体上下缘 E.边缘型者脊柱后凸一般不严重 查看答案
题型：单项选择题 对于数据中心运维服务人员的要求，以下哪项不属于管理人员的必备要求（）A.掌握运维服务项目管理的知识，具备项目管理的经验B.并有IT服务管理相关的培训/认证C.了解和掌握所在领域的主流技术D.具备产品研发三年以上经验 查看答案