第5章 二次根式单元检测A卷

21世纪教育网 –中小学教育资源及组卷应用平台 二次根式单元检测A卷 姓名：_____班级：_____学号：_____ 1 、选择题（本大题共12小题） 根式 ( http: / / www.21cnjy.com / )的值是（　　） A． ﹣3 B． 3 C． 3或﹣3 D． 9 下列各式中，为二次根式的是（ ） A． INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/0.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/0.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/0.png" \* MERGEFORMATINET B． INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/1.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/1.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/1.png" \* MERGEFORMATINET C． INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/2.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/2.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/2.png" \* MERGEFORMATINET D． INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/3.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/3.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/04/29/11/d1fc7b3a/SYS201404291140146909057000_ST/3.png" \* MERGEFORMATINET 式子 INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/0.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/0.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/0.png" \* MERGEFORMATINET 、 INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/1.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/1.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/1.png" \* MERGEFORMATINET 、 INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/2.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/2.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/2.png" \* MERGEFORMATINET 、 INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/3.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/2014/01/22/09/c2b76717/SYS201401220927296981158012_ST/3.png" \* MERGEFORMATINET INCLUDEPICTURE "http://img./STSource/20 ... ...