【简答题】(2005) 在图 5 所示的电路中,电源电压保持不变。闭合开关 S 后,当滑动变阻器滑片 P 向左移动时,电流表的示数将 ___________ (选填“变小”、“不变”或“变大”)。若在电路中再接入一个电压表,且当滑片 P 分别位于变阻器的右端、中点和左端时,电压表的示数如下表所示,则电压表应并联在图中 ___________ 两点之间(选填“ ab ”、“ bc ”或“ ac ”)。 滑片 ...
【简答题】用 is / isn't / am / are 填空 1. This my teacher . 2. I fine. 3. Is she Maria ?No, she 4. you Jane ? No, I not. I Maria. 5. he Kangkang? No ,he .He Michael. 6. What this in English ?
【简答题】Alexander: Excuse me everyone ! I would like you to meet our new 1_____, Lawrence. I hope you 2. _____. Alexander: This is Maria Taylor. She is a business development 3.________. She is good at deali...