Over the past decades , sea ice in the Arctic as a result of global warming .
#84442
A
had decreased
B
decreased
C
has been decreasing
D
is decreasing .
推荐题目
27.He _______reading, so he didn’t notice me when I came into the room.
#74788
A
addicted
B
addicted to
C
was addicted to
D
was addicted in
My grandfather is too old to care for himself, so my aunt is looking for someone to _____ him.
#71786
A
treat
B
cure
C
attend
D
examine
His first baby was born soon after he got married, which seemed to have ___his sense of responsibility.
#70087
A
brought down
B
brought out
C
turned down
D
turned out