幂函数f(x)的图象经过点(2,4),则f(4)等于( ) A.2    B

幂函fx)的图象经过点(24),则f4)等于(  )

A2    B8    C16   D64

答案

C

相关题目

按下列装置实验,不能达到对应目的的是加入20.0g Ca(OH)2   A
按下列装置实验,不能达到对应目的的是加入20.0g Ca(OH)2   A.收集H2    B.O2验满    C.配制20%的Ca(OH)2溶液    D.除去CO中的CO2
Is          some German friends visited last week ?     A.this scho
Is          some German friends visited last week ?     A.this school where               B.this school one     C.this the school                 D.
图4为我国三个流域“水灾受灾比(受水灾的县域个数与总县
图4为我国三个流域“水灾受灾比(受水灾的县域个数与总县域个数的比值)多年平均的月变化图”。影响我国最大的洪水灾害是(     )        
22.新闻标题,是指在新闻正文内容前面,对新闻内容加以概
22.新闻标题,是指在新闻正文内容前面,对新闻内容加以概括或评价的简短文字。一般来说,一个好的新闻标题应该具备以下几个要素:准确鲜明,言
下列各句中,加点的成语使用恰当的一句是(         )
下列各句中,加点的成语使用恰当的一句是(         ) A. “十七大”以来,中纪委严肃查处了刘志华、陈同海等大案要案,为国家挽回巨大经
David received a parrot for his birthday. The parrot had a poor vocabulary, and
David received a parrot for his birthday. The parrot had a poor vocabulary, and many were not polite. David tried hard    26    the bird’s words and was often saying polite words, playing s
设NA表示阿伏加德罗常数的值,下列说法中正确的(   ) ①
设NA表示阿伏加德罗常数的值,下列说法中正确的(   ) ①常温常压下,11.2 L乙烷所含的分子数为0.5NA ②14.2g 硫酸钠固体中含有0.1NA个硫酸钠分子:
 I would rather you ______ tomorrow       A come      B will come
 I would rather you ______ tomorrow       A come      B will come       C came        D had come

最新题目