钢水包吹氩用透气砖对抗钢水渗透性没多大要求。
参考答案:错
王某与妻子离婚,儿子随前妻改嫁他人后,王某与赵某恋爱。两人领取结婚证后,在回家途中因车祸致王某死亡,在这种情况下,以下不可以参加继承其遗产的法定继承人是()
A.王某的父母
B.赵某
C.王某的兄弟姐妹
D.王某与前妻所生之子
The UN has warned that,_____ natural systems like forests and wetlands disappear , mankind is losing the services they provide such as protection from extreme weather.
A.while
B.once
C.when
D.as