考点跟踪突破 2 整式一、选择题1.(·宿迁)下列计算对的的是( D )A.a2+a3=a5 B.a2·a3=a6C.(a2)3=a5 D.a5÷a2=a32.(·常德)若-x3ya与 xby 是同类项,则 a+b 的值为( C )A.2 B.3C.4 D.5 3.(·济宁)已知 x-2y=3,那么代数式 3-2x+4y...
时间:2025-06-04 09:37栏目:高等教育
考点集训 4 二次根式及其运算一、选择题1.的值等于( A )A.4 B.-4 C.±4 D.【解析】==4.2.下列根式中,不是最简二次根式的是( B )A. B. C. D.3.要使式子故意义,则 x 的取值范围是( C )A.x>1 B.x>-1 C.x≥1 D.x≥-14.函数 y...
时间:2025-06-04 09:14栏目:高等教育
第一节 实 数1.[河南,1]- 的相反数是( )A.- B.C.- D.2.[河南,1]-5 的绝对值是( )A.5 B.-5C.D.-3.[河南,2]今年一季度,河南省对“一带一路”沿线国家进出口总额达 214.7 亿元.数据“214.7 亿”用科学记数法表达为( )A.2.147×102 B.0.214 7×103 C.2.147×101...
时间:2025-04-11 15:11栏目:高等教育
精品文档---下载后可任意编辑 _________年________月_________日 姓名_____________课时 1.实数的有关概念(1)【课前热身】1.3 的倒数是.2.若向南走记作,则向北走记作.3.2 的相反数是.4.的绝对值是( )A.B.C.D.5.随着电子制造...
时间:2025-02-14 10:42栏目:行业资料
ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus o...
时间:2024-12-16 07:29栏目:行业资料
ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus o...
时间:2024-12-16 07:29栏目:行业资料
ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus o...
时间:2024-12-16 07:29栏目:行业资料
ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus o...
时间:2024-12-16 07:29栏目:行业资料
ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus o...
时间:2024-12-16 07:29栏目:行业资料
学习必备欢迎下载第 1 页热点专题一数与式【考点聚焦】“数与式”包括有理数、实数、代数式、整式与分式四个部分.数与式渗透后面各部分内容之中,联系着所有数学知识.它是开展数学学习和研究的基础,也是中考的重要...
时间:2024-12-09 03:27栏目:行业资料