【判断题】上面发酵啤酒又称为贮藏啤酒,下面发酵啤酒又称为爱尔啤酒。
【简答题】三相异步电动机调速常用方法是( )。 A 、改变定子绕组磁极对数 B 、改变电源频率 C 、改变负载大小 D 、改变功率因数
【单选题】It can be inferred that Lean In______.
A.
voices for working women
B.
appeals to passionate workaholics
C.
triggers debates among mommies
D.
praises motivated employees
【单选题】—Why do so many people love Prime Minister (总理) Wen Jiabao? —Because he likes working _______ the working people. [ ]
【单选题】In 1990, over 50 million Americans were working at the_______wages of any nation in the world.
【多选题】在美国大学,学生选课时可以根据自己的兴趣、课程的难易度和学分在全校范围内进行选课,所以学生可以:
【单选题】Don't have the horse ______ all the time. It needs a good rest. [ ]