皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
混合物的原始压力对爆炸极限有很大的影响,一般压力增大,爆炸极限扩大。这是因为系统压力增高,其分子间距更为接近, 增高,因此使爆炸更易发生。 [填空(1)] A. 碰撞几率
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】使用E-R图方法的三要素是()。
A.
实体,属性,主键
B.
实体,域,候选码
C.
实体,属性,联系
D.
实体,键,联系
【简答题】阅读短文,看表格,完成下列各题。 There are forty-eight students in my class. Some students go to school on foot. Some students go to school by bike. Some students go to school by bus. Some students go to school by su...
【判断题】 比表面吉布斯自由能与表面张力是体系的两个热力学变量,描述的是体系的同一个性质。
A.
正确
B.
错误
【简答题】完形填空。 In North American, most students go to school on the school bus. Some students also walk or ride bikes to school. In 1 parts of the world, things are different. In Japan, most students take trai...
【单选题】一般认为,法的三要素是指法律原则,法律规则和 ( )。
A.
法律关系
B.
法律权利
C.
法律制裁
D.
法律概念
【简答题】E-R方法的三要素是:实体、()和联系。
【简答题】How do you make friends? Some students are sharing their ideas with us. Tom Although we are quite different, Adam and I have been close friends for 5 years. We have a lot to talk. We play basketba...
【单选题】三要素法的三要素指的是那三要素
A.
振幅、频率、初相位
B.
频率、周期、初相位
C.
角频率、周期、频率
D.
初始值、稳态值和时间常数
【单选题】Some students often go to class late or not at all. They want to “enjoy life” and muddle through the four years at college. These examples of the abuse of independence are an indication that these stu...
A.
childhood
B.
adolescence
C.
adulthood
D.
youth
【单选题】E-R方法的三要素是 ______。
A.
实体、属性、实体集
B.
实体、码、联系
C.
实体、属性、联系
D.
实体、域、码
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题