描述磁场在某一范围内分布情况的物理量叫（）。
A.磁感应强度
B.磁力线
C.磁通
D.电磁力
参考答案：C
根据五行相克的关系中，土的“所胜”是（）。
A.木
B.火
C.土
D.水
E.金
--Excuse me, you are supposed to hand in your design now.
--I’m sorry, my computer broke down, or I ________ it last night.
A．finished
B．would finish
C．had finished
D．would have finished
