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【语篇导读】本文是一篇说明文。文章介绍了垂直农业的特点、好处和发展前景。l2.A细节理解题。根据第一段Techniques include growing in vertical frames or even in high-rise farms whilemoving farms into urban areas,and producing nutritious crops without topsoil,.可知，垂直农业未来会在城市流行。l3.C细节理解题。根据第二段Vertical farmers plant crops in nutrient-rich water,.so plants can be raisedwithout soil..可知，第二段中提到的技术共同点是节省土壤。l4.B推理判断题。根据倒数第二段This is fuelled in part by rising demand for organic,chemical-free foods,but also by countries looking to increase their food security and cut down on imports-the UK for exampleuses more than 70 percent of its land mass for agriculture but imports more than half of its food,可推断，垂直农业有前途的原因是有机食品越来越受欢迎。l5.C标题归纳题。根据第一段Upright farming is a hugely promising agricultural technique that aims toproduce more food to meet the growing population on our limited planet.和倒数第二段The global verticalfarming market is expected to be6 times bigger in2026 than it is today.及全文可知，本文主要是讲述垂直农业的发展潜力。C项适合作为文章标题。

1.如图所示，一个闭合等边三角形金属框架，左边竖直且与磁场右边界平行，完全处于方向垂直于框架平面向里的匀强磁场中。现用外力F把框架水平向右匀速拉出磁场，设等边三角形金属框架开始出磁场的时刻为零时刻，则电动势E、外力F和外力的功率P随时间：的变化图像可能正确的是XXXX网设西盘过氏状件网金XXXB【答案】A【解析】框架在外力F的作用下以速度)水平向右做匀速运动，则框架切割磁感线的有效长度L=2w53L,结合E=BLU可知，电动势E=3B01,则E与t成正比，A正确，B错误；设框架的总电阻为R,则框架中的电流E2√3Bu2tI=R架做匀速运动，则有F=F=BIL=4BgT,则F与2成正比，C错误：由P=；3R3R与t2成正比，D错误。