INPUT x
m=x MOD2
IF____THEN
PRINT x是偶数
ELSE
PRINT x是奇数
END IF
END
(Ⅰ)证明:平面AEF⊥平面ACC1A1;
(Ⅱ)若AB=EC=2,求二面角C﹣AF﹣E的余弦值.
Danny:I'm hungry. ____!There is a restaurant.
Jenny: ____. I am not hungry. I don't want to eat.
Danny:Go with me,please!
Jenny:Okay!
Danny:I'm excited.
Jenny:Danny,please don't ____!Don't ____! Don't ____!
Danny:Okay!Okay!I walk.
阅读下面的古诗,完成各题。
辋川①六言(其五)
王维
山下孤烟远村,天边独树高原。
一瓢颜回陋巷②,五柳先生对门。
【注】①辋川:地名。②一瓢颜回陋巷:孔子在《论语·雍也》中赞美弟子颜回安贫乐道的高尚品质。