A.大于G
B.等于G
C.小于G
D.无法确定
答案:A
-There is still a copy of this book in the library. Will you go and borrow _________?
--No, I will buy in the bookstore.
A.one; it
B.one; one
C.it ; one
D.it; it
电荷()之间有互相作用力。
A.电流
B.电压
C.电阻
D.电荷