【简答题】The type of account she wants: __________.
【判断题】道德修养是体现个人道德品质高低的一个概念。
【简答题】A.She wants to have the blue sweater refunded. B.She wants to buy another sweater for her husband. C.She wants to change the sweater for a smaller one. D.She wants to have the blue sweater altered.
【简答题】A.She wants to pay it by cash. B.She wants to ask her friends to pay. C.She wants to pay it later. D.She wants to cut down the price.
【判断题】使用并励电动机时,需要在电动机运转时断开励磁电路。( )
【单选题】在图(a)和(b)中各有一半径相同的圆形回路 、 ,回路内有电流 、 ,其分布相同且均在真空中,但在(b)图中 回路外有电流 , 、 为两圆形回路上的对应点,则( )