皮皮学，免费搜题
登录
搜题
【单选题】
某一反应器的体积为 2m 3 ,物料以 1m 3 × min -1 的速率流过反应器,物料停留时间为 2min 中的停留时间分布密度函数为 _________min -1 ,相应的停留时间分布函数为 _______ ,这部分物料在总量中所占分率为 _________A.
0.632 ， 0.1839 ， 63.2%
B.
0.1839 ， 0.632 ， 63.2%
C.
0.1839 ， 0.632 ， 36.8%
D.
0.3678 ， 0.632 ， 63.2%
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】集体主义是个人与集体辩证统一关系在道德上的反映。坚持集体主义 1需要关注个人利益 2不需要考虑个人利益 3不需要承认个人利益的合理性 4反对只顾自己、不顾他人的极端个人主义
A.
①④
B.
②③
C.
①③
D.
②④
【单选题】The author is now convinced that _____.
A.
It is natural for all people to think of the center of the world as being somewhere very familiar to them
B.
there can be only one center of the world and it is England people in other countries do not know thy here he was born in New
C.
there can be only one center of the world and it is the rock pinnacle in the Brazilian village but most Americans do not know this
D.
there are two centers of the world, one in the United States in the cultural sense, and the other in Brazil in the geographical sense
【简答题】The idea was to have users upload their medical records, so that they could be at any time.
【单选题】1 2 .集体主义是个人与集体辩证统一关系在道德上的反映。坚持集体主义( )。 1需要关注个人利益 2不需要考虑个人利益 3不需要承认个人利益的合理性 4反对只顾自己,不顾他人的极端个人主义
A.
②④
B.
B②③
C.
③④
D.
①④
相关题目：
参考解析：
知识点：
题目纠错 0
发布
