Mr. King was over sixty and lived by himself a long way from town. He nearly hadn’t left his home. But one day he went into town to buy things. After he bought them, he went into a res
观察下列等式=1﹣， =， =将以上三个等式两边分别相加得： ++=1﹣++=1﹣=（1）猜想并写出： = （2）直接写出下列各式的计算结果：①+++…+= ②+++…+=
下列有关电解质的说法正确的是( ) A、纯水的导电性很差，所以水不是电解质 B、SO3水溶液的导电性很好，所以SO3是电解质
Care of the soul is a gradual process ______ even the small details of life should be considered. A. in which B. during where C. in what D. in where
阅读下面一则新闻，完成问题。（6分） 昨日，2009中国作家富豪榜名单揭榜，名单依旧延续前三届的方式，公布了前25位作家名单及版税。有意思的是前
一块具有时针、分针、秒针的手表，如表面指示10点10分40秒，则通过手表左方的平面镜读出的表面示数是_________．
The elephant was lying heavily on its side, fast asleep. A few dogs started barking at it. The elephant woke up in a terrible anger: it chased the dogs into the village where they ran for safety.That
下列各式正确的是() (A)=-3 (B)=a (C)()3=-2 (D)=2
的最小值是 ，此时
.
，
；