下图为南半球某地某日海平面等压线分布示意图。图中从甲地到乙地的气流方向,正确的是( )
A:①
B:②
C:③
D:④
已知全集为R,集合A=x|12x≤1,B=x|x2-6x+8≤0,则A∩CRB=( )
要求:①补全题目,可填上如“难忘”…“快乐”……②写清发生的事情。③不少于500字。
一艘从中东往日本运送石油的船需要经过的海峡是
① How much cheese do you want ? ____ A. They will come tomorrow.
② How many things are there ? ____ B. I'm shopping .
③ When will these things come ? ____ C. Half a kilo.
④What are you doing ? ____ D. Thirty-seven.