题型:问答题 简答题 After _______, jack hurried to work.A.a quick breakfast B.quick breakfastC.eating quickly breakfastD.eating quickly the breakfast 查看答案
题型:问答题 简答题 三相异步电动机接线盒内的连接方式如图所示,试说明图1、图2为何种连接()。A.图1为△接、图2为Y接B.图1为Y接、图2为△接C.图1为△接、图2为△接D.图1为Y接、图2为Y接 查看答案