空气中引起温室效应的主要气体是( )
A.氧气
B.氮气
C.二氧化碳
D.水蒸汽
答案:C
The village seemed______, the only sign of life____some trees waving in the howling wind.
A.alone; were
B.deserted; being
C.lonely; was
D.abandoned; to be
商业银行关联交易是指商业银行与关联方之间发生的转移资源或义务的事项。