下列关于钠的叙述中,不正确的是 [ ]
A.钠燃烧时发出黄色的火焰
B.钠有很强的还原性
C.钠燃烧时生成氧化钠
D.钠通常保存在煤油中
答案:C
Wolves will their lives______the loss of the trees and forest.[ ]
A. lose, because of
B. lose,because
C. loss,because of
D. loss,because
“集装箱号”栏:( )。
A.SCZU7854343*2(2)
B.SCZU7854343*2(3)
C.SCZU7854343/20/XXX
D.SCZU7854343/SCZU7855234