【判断题】研究表明处理压力、保压时间和施压次数对杀菌保鲜效果无影响。()
【单选题】U207 It is lamentable that Cassidy will not get to coach his team next season.
【单选题】Ag scientists tout this application of gene editing as a more humane form of farming because it spares male Holstein cows from a gruesome procedure during which dairy farmers physically gouge out and ...
A.
gives something of which one has enough to someone
B.
tries to satisfy one’s own comfort or needs
C.
is unwanted or not needed and therefore available for use
D.
refrains from killing, injuring, or distressing
【判断题】水压试验压力为3.2Mpa,保压时间不得少于1min。
【单选题】有一电源和负载都是星形联结的对称三相电路,已知电源相电压为220V,负载每相阻抗模 。负载的相电流为( )。
【单选题】School shootings across the country continue to discuss the story of the student who is outcast by fellow peers and decides to lash out. These reports may leave some wondering if ostracism is a legiti...
A.
the problem of distressing experienced by school students
B.
the phenomenon of some students being excluded by peers
C.
the violence happening on campus witnessed by students
D.
the issue of some students unwilling to communicate with peers
【单选题】三角形联结的对称三相负载,每相电阻为8Ω,感抗为6Ω,由相电压为220V星形连接的三相电源供电,则负载相电流为________。