【多选题】电动机可以通过改变( )三种方法调速,而三相笼型最常用的方法是( )。
【单选题】Architects are hopeless when it comes to deciding whether the public will view their designs as marvels or monstrosities, according to a study by Canadian psychologists. They say designers should go b...
A.
Architects have a dark future in designing marvelous buildings.
B.
Architects don't care about how ordinary people view their designs.
C.
It is very difficult for architects to please the general public.
D.
Architects don't know much about the public tastes for buildings.
【单选题】When deciding the composition of the engineering watch, which may include appropriately qualified ratings, following criteria shall be taken into accountⅠ.the type of shipⅡ.the type and condition of t...
【单选题】Banks normally give______to large businesses when deciding on loans.