—Do you know where coffee was from first?
—It was said that coffee ______in Africa a long, long time ago.
图甲是旅游景观图,图乙是我国部分区域图,读图完成下列问题。
图甲
图乙
对于近似数0.1830,下列说法正确的是( ).
指针下方的物体A应由________材料制成; ( )