诸多世界中，有一个脱离了常识，和其他的世界糅杂在了一起，神界也因此产生分歧，不同派系的申明大打出手，人间的各个物种中战争不断，千年后，一场大战结束了各物种间的斗争，但仅仅过去四百多年，骚动又一次开始，也是在这时，晓杰一行人被召唤了过来，没有人知道，这个世界会因为这一次召唤而大变。

诸多世界中，有一个脱离了常识，和其他的世界糅杂在了一起，神界也因此产生分歧，不同派系的申明大打出手，人间的各个物种中战争不断，千年后，一场大战结束了各物种间的斗争，但仅仅过去四百多年，骚动又一次开始，也是在这时，晓杰一行人被召唤了过来，没有人知道，这个世界会因为这一次召唤而大变。

For undergraduate-level courses in Signals and Systems. This comprehensive exploration of signals and systems develops continuous-time and discrete-time concepts/methods in parallel -- highlighting the similarities and differences -- and features introductory treatments of the applications of these basic methods in such areas as filtering, communication, sampling, discrete-tim...(展开全部)

For undergraduate-level courses in Signals and Systems. This comprehensive exploration of signals and systems develops continuous-time and discrete-time concepts/methods in parallel -- highlighting the similarities and differences -- and features introductory treatments of the applications of these basic methods in such areas as filtering, communication, sampling, discrete-tim...(展开全部)

Incorporating new problems and examples, the second edition of "Linear Systems" features MATLAB material in each chapter and at the back of the book. It gives clear descriptions of linear systems and uses mathematics not only to prove axiomatic theory, but also to enhance physical and intuitive understanding.

ONE OF THE WALL STREET JOURNAL AND NPR'S BEST BOOKS OF 2017 Containing twelve new stories and nine classics from previous collections, Signals is Tim Gautreaux at his best. Effortlessly conjuring the heat and humidity of the author’s beloved South, these stories of men and women grappling with faith, small town life, and blue-collar work are alternately ridiculous and sublime. ...(展开全部)

ONE OF THE WALL STREET JOURNAL AND NPR'S BEST BOOKS OF 2017 Containing twelve new stories and nine classics from previous collections, Signals is Tim Gautreaux at his best. Effortlessly conjuring the heat and humidity of the author’s beloved South, these stories of men and women grappling with faith, small town life, and blue-collar work are alternately ridiculous and sublime. ...(展开全部)

"The authors provided state-of-the-art information about mixed methods approaches to research. The book significantly expands Creswell's previous editions of mixed methods approaches to research by including four complete current studies that exemplify distinctive research using mixed methods...What becomes apparent throughout the book is the authors' interest in providing rese...(展开全部)