The money was returned intact by its finder.钱原封未动地被捡拾者送还.Every stray dog has to be taken by its finder to the police.发现走失的狗后都应将它带到警察局。The finder of a wallet who takes it home may be guilty of theft.将钱包据为己有的人可能会被控盗窃。...
And how is it known that Mars had hafnium - 187 ?那么是如何知道火星有铪 -187 的 呢 ?This activator is acyl amine - the hafnium activator that ether is a foundation.该催化剂为酰胺 - 醚为基础的铪催化剂.Chemical form of hafnium is perchlorate or nitrat...