【单选题】It can be inferred that the Byzantine Empire sustained significant territorial losses ______.
B.
during the seventh century
C.
soon after the revival of Byzantine learning
D.
in the century after 873
【单选题】当市场产品供不应求时,其一般宜实行( )
【单选题】Territorial ______ was the Rome Empire's principal consideration in making policy decisions.
【简答题】公文的主题是公文制发者所要表达的( )。
【单选题】当市场产品供不应求时,其一般宜实行( )。
【单选题】蝴蝶素有“春驹”之称,说明古人早就意识到昆虫对_______的敏感性