衡中同卷2022新高考信息卷答案

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20.AC【解析】[文]如图所示,根据比例[章]关系在a、c连线上[来]找到d点,d点的电[自]势为20V,在b、[知]c连线上找到e点,[嘛]e点的电势也为20[答]V,作出等势线de[案],垂直于等势线即为[网]电场的方向。4 vcmd1-+-1[文]---2468cm[章]cd的电势差为6V[来],在电场线上的投影[自]为2.4cm,则电[知]场强度E≈Ud2.[嘛]5V/cm,故A正[答]确;由数学知识和图[案]可知cO为电场线方[网]向,故B错误;根据[文]勾股定理,co=1[章]0cm,g。=9:[来]-Ed=1V,故C[自]正确;电子在a点的[知]电势能E=9=10[嘛]×(-1.6×10[答]-1)=-1.6×[案]10-18J,故D[网]错误。

【答案与解析】本文[文]是一篇说明文。主要[章]介绍了多伦多野生动[来]物中心希望采购的几[自]款野生动物救援产品[知]的功能及用途28C[嘛]推理判断题。根据第[答]二段“ which would immediate[案]ly inform the team with photos if an animal has been successfu[网]llytrappe[文]d, or has returned to a place that they are monitorin[章]g."可推断,这种能够遥[来]控的摄像头网络有助[自]于救援队不间断监控[知]某一特定地点。29[嘛].D细节理解题。根[答]据第三段“ The technolog[案]y will be useful for.. finding animals at night when it' s too dark to see”可知,热成[网]像仪适合在黑暗中追[文]踪野生动物。30.[章]A代词指代题。画线[来]代词it与前一句“[自] But if there's another baby in it, then we can't separate the family and will need to returnthe[知] baby to it..”中的it[嘛]指代的是同一样东西[答]:原来的鸟巢。31[案].B主旨大意题。根[网]据第一段“ Rescue team of toronto wildlife Centre(TW[文]C) want to match their skills with the latest technolog[章]yto help more animals faster and with an even higher success rate.”及全文[来]可知,本文主要是向[自]读者介绍TWC希望[知]采购的几款野生动物[嘛]救援产品