问题
问答题 简答题
什么是金属的变形抗力？
答案
参考答案：变形抗力是指金属抵抗塑性变形的能力，单位是Pa。变形抗力的大小取决于金属原子间的结合力。
搜题请搜索小程序“爱下问搜题”
什么是金属的变形抗力？
参考答案：变形抗力是指金属抵抗塑性变形的能力，单位是Pa。变形抗力的大小取决于金属原子间的结合力。
| 完形填空。 | ||||||||
| According to my experience, one of the first things you can do to make friends with others is to develop eye contact(接触). For many people, it's frightening to look people in their 1 . As soon as someone catches your eyes, do you find yourself quickly 2 away? Why not make a challenge (挑战) to yourself?Look at the next person you meet 3 in the eyes, smile and count to three before looking away. After you feel comfortable looking people in their eyes, it's time to say 4 . Often just a sirnple "Hello" 5 start a train of reaction (反应) ,and the next thing you know is that you may have a twenty-minute conversation. When you meet a person for the first time, the golden rule is to get his or her 6 and use it right away. It's pretty simple really. " Hi, I'm Marc, what's your name?" " Phil" " Nice to meet you, Phil. " I have a ten-year-old kid who is very shy and introverted, and a four-year-old one who 7 everyone in the restaurant in about ten minutes, so I've seen 8 sides. If you're not naturally(天生地) __9 ,it doesn't mean you can't become more extroverted. It just takes some time, but trust me the 10 is fun. You'll be glad you do it right away. | ||||||||
( )1. A. ears ( )2. A. running ( )3. A. straight ( )4. A. nothing ( )5, A. can ( )6. A, address ( )7. A. makes ( )8. A. all ( )9. A. shy ( )10. A. practice | B. eyes B. going B. down B. anything B. must B. number B. leaves B. every B. introverted B. lesson | C. mouths C. looking C. up C. everything C. have to C. name C. knows C. each C. outgoing C. conversation | D. noses D. getting D. over D. something D. need D. age D. loses D. both D. comfortable D. kid | |||||