解得cosa cos B=-m,sin asin B=-2m.cos(a-B)=cosa cosB+sina sin B=-3m.故选A.5.已知圆柱和圆锥的底面半径相等，侧面积相等，且它们的高均为5，则圆锥的体积为()A.2√5xB.35rC.65元D.9N5π解：...

Time and tide wait for no man.时间不等人。c.表示主语的特征、能力和状态This cloth feels soft.这布摸上去很软。I love classical music.我喜欢古典音乐。The President still seems able to...

59.search寻找100.thus如此60.same同一的101.satisfy使满足61.furniture家具102.arise起来62.agree同意103.sorry对不起63.heart心脏104.dinosaur恐龙64.unemployment失业105.properly适当的65.n...

afford sth.tosb.为某人承担..anyone who=whoever任何人（引导主语从afford to do能够去做句)after a time一段时间后apart from除.外还.after a while不久appear to do好像.after all毕竞：终究...

art美术，艺术artistry艺术气质，艺术天赋artistic艺术的artist artificial人造的，虚构的(art技术+fic制作)article文章，物品technique技术technician技工technical technology工科科学tech技...

I.解析：A,C、D破杯自然，B节水灌溉技术合理利用自然，体现和谐，选B。2.解析：技术创新性体现在改进、发明，A,C否定创新，D忽视技术与艺术关联，选B,3.解析：A,B、D均有安全隐患，C佩戴防护手...

and won the first prize.Now I'd like to share mywriting experience with you.First of all,there is no doubt that I often irecite some beautiful Engl ish essay,which help methink in ...

26职教高考练习题C.按照操作手册设置参数，做好防火防护D.雕刘时领繁打开机盏，观察进度10.制作简易手机支架模型，合理的流程是()A直接动手制作，不设计不规刻B.先画设计草图，选合适材料，再切...

1.解析：音乐：赏需综合聆听、分析、结合背景，B'忽略歌词只听伴奏”无法全面：赏，选B。2.解析：音乐体裁指作品样式（如交响乐、奏鸣曲），A是乐器，C是记谱法，D是音乐要素，选B,3.解析：《二...

7.It is more difficult to write simply,directly,and effectively than to employ flowerybut vague expressions that only obscure one's meaning.简明，直接，有力的写作难于花哨，含混而意...