人工影响天气作业

10．某同学用显微镜观察水中微小生物,图甲表示显微镜视野中微生物游走方向,为了不使该微生物从视野中消失,则载玻片移动的方向是图乙中的 ( )A．A方向B．B方向C．C方向D．D方向 科学的一道选择题以编钟为主演奏乐曲是我国古代的重要发明,远在商周时代就用编钟演奏了.所谓“编钟”是一列大小不同的乐钟,按谱打击就可以演奏.乐钟的大小不同,主要影响声音的（ ） 一道科学选择题、急用显微镜观察植物细胞装片时,如果目镜不变,而物镜由“10×”转向“40×”这时视野内细胞大小和数目变化正确的是（）A.变大、变多 B.变小、变多 C.变大、变少 D.变小、 木尺受潮后膨胀,用它来测量物体的长度,测量结果会（ ）a 偏大 b 0.005厘米 c 0.1厘米 d 0.1毫米 She looked______she were ten years younger.A.that B.like C.as D.as though Community service can____anything from gardening to helping in old people's homes.A involve B remain C insist D ask The dictionary as well as the grammar books that _____ bookmarks in them_____ Jane.A.has; belong to B.have; belong to C.have ;is belonged to D.has; are belonged to请问应选哪一个, 一道英语选择题、谢It is the first time that you have come to China,( A.haven't you B.isn't itC.hasn't itD.aren't you ---Is your mother ____today?---Yes,she looks a little______.A.well;betterB.better;better 1.2.3题选择题 1,2, 第1,2题 2 一道英语选择题（3.2）I ___ to see a movie had it been at all possible,but I ___ fully occupied the whole of last week.A would have gone,wereB went,had beenC will go ,have beenD would have gone,was请问这个选哪个?请分析一下语法 2-3题 选择题1～4告诉我为什么选这个（生物） 甲乙丙三只脸盆依次装着热水、温水、冷水,把左手放入甲盆,右手放入丙盆,过一会儿,两手同时放入乙盆,这时双手的感觉是A 两手都感觉温 B 两手都感觉先热后冷C 左手感觉热,右手感觉冷 D 左 右图为某种细胞的结构示意图,正常生理状态下,下列选项中的变化 都会在该种细胞中发生的是 A.氨基酸→胰岛素；ATP→ADP+ Pi B.葡萄糖→淀粉；H20→[H] +O2 C.氨基酸→RNA聚合酶；[H]+02→H20 D.葡 下列对生物的生命活动调节有关的叙述,合理的是( )A.太空失重状态下植物激素不能极性运输,根失去了向地生长的特性B.胰岛素分泌不足,可能会使机体对脂肪的利用比例增加C.使同种植物的扦 在维持内环境稳态上不起作用的是A 肝根据体内需要增加或减少释放进入血液中的葡萄糖量B 肺根据按一定速率呼出和吸入氧气和二氧化碳C 肾把代谢产物不断排出体外D 红骨髓源源不断造出 问一道生物选择题啊 ,最好能有理由种群是指生活在同一地点的同种生物的一群个体.种群中的个体通过繁殖维持种群的规模.下列叙述错误的是A种群内部存在这食物链 B某一动物种群的扩大 希望说明原因下列关于免疫的说法错误的是（ ）A.加强体育锻炼能提高自身的免疫力B.可以通过预防接种获得免疫力C.通过口服某种中草药而增强免疫力D.人体通过注射传染病一面都可获得终 一道高中生物选择题,求理由!.某动物体细胞有丝分裂后期有24条染色体.在正常情况下该动物的精子中有染色体几条( )A.3 B.6 C.12 D.24 说出原因,急（双选) 关于人体排泄的功能,不正确的是（ ）A.排除经消化吸收剩余的食物残渣.B.排除体内产生的二氧化碳.C.排除体内多余的水和无机盐.D.排除体内分解有机物产生的能量. The newly released movie was ( ) as to arouse so much sensation among the young people.A.so B.such C.much D.very 一道英语选择题,要告诉我选择的原因It seems hopeless because there is little time( ).A.leaving B.left C.to leave D.leaves I speak Chinese,but Mary______.A.doesn't B.don't C.isn't ______the advantages against the disadvantages,I decided to take up the job as clerk in the bank.A To weighB WeighingC WeighedD Having weighed By the time we were sent to the village ,we ___ mostly 16 or 17 years old.A.had been B.should be C.would have been D.were By the time he arrives in beijing ,we____here for 2 days.will have stayed 一道英语选择题.回答后告诉我为什么.Your bag seems to be very heavy,What does it ____?-Just some book.A.include Bcollect C,load D contain,告诉我为什么哈. What can i do for you?I need ________of tomatoes.（）A.one and half kilo B.one and a half kilosC.one and half kilosD.one and a half kilo要告诉我为什么, 一道英语选择题,麻烦告诉我为什么这样选I_to help you but I was not able to spare any time.I _a paper last night and I will finish it tonight.A wanted;have been writing B have wanted ;wrotedC had wanted;wrote D had wanted;was writing