数4557、1953、5115的最大公约数应是
93
(2011·福建)—It's nice.Never before ________ such a special drink!
—I'm glad you like it.
A.I have had
B.I had
C.have I had
D.had I
( ) 对于 书籍相当于 ( ) 对于子弹
A.智慧-伤亡
B.书柜-弹仓
C.纸张-炮弹
D.书店-工厂