思博教育•河北省2025-2026学年第一学期第一次学业质量检测(八年级)数学(冀教版B版)试题
(17)(本题满分15分)已知函数f(x)=2时,求曲线y= f(x)在点(2,f(2))处的切线方程;3x-2y+3n2-=0(I)2a2-3恒成立,求a的取值范围.(0.](II)若f(x)≥2(18)...
(17)(本题满分15分)已知函数f(x)=2时,求曲线y= f(x)在点(2,f(2))处的切线方程;3x-2y+3n2-=0(I)2a2-3恒成立,求a的取值范围.(0.](II)若f(x)≥2(18)...
20.(本题满分5分):.汉服的租借费用y(元)与租借时间x(时)之间的函数关系式为y=10x+.20;.....4分解:(1)2分(2)令y=10x+20=65,解得x=4.5...6分(2)画树状图如下...
听第10段材料,回答第18至20题。A 21.What should you do to become a volunteer on theA 18. What activity is presented in the lab?farm?听A. Building model...
C. A Guinness World Record.shioanobs5MpiephIsAACaeant gmvol-doodA印食赔二業gbagg omC. In the Netherlands.UGC. Watch sports videos.fOC. Eat delicious f...
解决这些环境问题。因此,斐济发起该倡议的直接原因是旅游业给环境带来了危害。29.A。推断。根据第三段中的Whilevisitors have unofficiallybeengivingback ...t...
WhichMondaA.ThC.Stu10.Wha听11.Wha12.HowA.SC.E13.WheA.TC.T14.WhWha17.HowA.218.HowA.S分金卷·英speaC.A.听BGGWhtraiU听Ti15.16.9假定你是红星中学高三学生李...
without it.day?A.He got an idea of writing.B.He needed to give an autograph.C.He wanted his hero's autograph.have your autograph (签名)?”“Sure, kid...
D,thatonlineI will do is to make a card for him.C.whose-The first thingbullyiA.whoB.whereD.EverybodyC.NobodythatShe taught herself.A.AnybodyB.Somebody...
(二)现代文阅读Ⅱ(本题共4小题,16分)阅读下面的文字,完成6~9题。窗外一0有时空望孤云高白,香气钱红莉还越过群山这季节唯一盛景,云天俱美。就是云六点钟的...
面悲壮,却给人以希望。这是山村文化的悲哀。育了美丽的山歌。引人猜想。神差,见了他两个不敢出气儿·是生怕这气大了,吹倒了姓林的;气暖了,吹化了这姓薛的。”...