black

网课搜答案、网课在线作业试题答

登录

单项选择题

某封闭系统经历一个可逆过程,系统所做的功和排出的热量分别为100kJ和45kJ,则系统的熵变为()。

A.正
B.负
C.不可判断

相关考题

单项选择题 —Did you have any trouble with the customs officer?—________ to speak of.A. No B. Nothing C.None D. Neither

多项选择题 建设工程文件的载体有一下()几种形式。

单项选择题 ________, the idea of having to work under a woman defeated him.A. Wanting the job verymuch B. Although wanting the job badlyC. Though he wanted the job very much D. Hewanted the job badly

All Rights Reserved 版权所有©在线考试题库网(zxkao.com)

备案号:湘ICP备14005140号-7

经营许可证号:湘B2-20140064