计算22.5°=_________°_________′ 12°24′=_________°
1.82°12'=_________° 82.12°=_______°______'_______"
125.36用度分秒表示为__________,43°28′30″用度表示为_________
1.cos31°=a,则sin239°×tan149°=_________
36和48的最大公因数=_________=_________
Water _________(freeze) at the temperature 0°C
go back to=_________
用平方差计算:41^2-39^2=_________
帮解四道计算题48°39′+67°41′=_________;90°-78°19′40〃=___________;21°
一.填空题:1.2/3直角=___°,45°=____平角=_____周角2.6°30′18″=_________°;3
英语翻译_________ _________ this _________ seeater.
三字经 临渊羡鱼,_________;_________,__________.__________,_________
干干净净的近义词有_________._________._________.