计算42-22=_____,62-42=_____,82-62=_____,102-82=____.
计算42-22=_____,62-42=_____,82-62=_____,102-82=____.
finally=_____ ____=_____ ____ _____
whenever=___ ____ _____ whatever=____ _____ ____
nine forty-five=_____ ____ ____ _____
当然英语翻译_____=_____=_____
by himself=_____ _____ _____
1、keep healthy=_____ _____ _____ _____
Mg(OH)2+_____====____+_____
live as a family=live ____ _____ _____
角的单位换算32.18°=____°_____'_____"42.36°=____°_____'_____"
人体细胞内进行呼吸作用可表示为_____+_____=____+_____+______
42×48=_____,56×54=____,75×75=____,你发现计算结果有什么规律?