题干
---How about going abroad for a trip this summer?
---_______ - we have been heavily in debt.
---_______ - we have been heavily in debt.
A：Better forget it
B：Sounds great
C：I can’t agree more
D：It’s up to you
答案(点此获取答案解析）
A
。流经导线的电流为I，方向如图中箭头所示。导线段abcd所受到的磁场的作用力的合力
