大黄的别名是( )。
A.生军B.银杏C.仙灵脾D.天花粉E.乌贼骨
参考答案:A
We’ll have a sports meet for the next three days.________,we won’t have lessons for three days.
A.In other words
B.On the other hand
C.For one thing
D.As a matter of fact
变压器反充电有什么危害?