【单选题】The Fed uses three policy tools to manipulate the money supply: open market operations, which affect the _____; changes in discount lending, which affect the _____ by influencing the quantity of disco...
A.
money multiplier; monetary base; monetary base
B.
monetary base; money multiplier; monetary base
C.
monetary base; monetary base; money multiplier
D.
money multiplier; money multiplier; monetary base
【判断题】晶闸管可通过在门极施加负的脉冲电流使其关断
【单选题】某产妇,30岁。3周前剖宫产分娩一男婴。 3小时前开始阴道出血,量多。最可能的诊断是
【判断题】门极可关断晶闸管是通过门极对器件的导通和关断状态进行控制的,是属于全控型电力电子器件。( )
【简答题】常用的整流组合元件有 和 。半桥堆的内部由 个二极管组成,而全桥堆的内部由 个二极管组成。
【单选题】The Natural Approach uses three stages as a basis for beginners: 1 ______ 2 giving the students comprehensible input about experiences and allowing for opportunities to engage in conversations about t...
A.
lowering the affective filter
B.
strengthening the affective filter
D.
strengthening motivation
【单选题】下列选项中,属于基金运作费的有( )。 I.审计费II.律师费III.过户费IV.经手费
【单选题】某产妇,30岁。3周前剖宫产分娩一男婴。3小时前开始明道出血,量多。最可能的诊断是