描写树高的词语

罗非鱼是杂食性鱼类,能适应咸、淡水环境.某实验基地水 库中放养了一批罗非鱼.监测数据显示,a -e段,这种罗非 鱼的种群数量发生了明显的波动.调查发现,有人在该水库 中放生了大型肉食性 问几个生物选择题``急`````1.人体的下列关节中,灵活性最大的是( )A.踝关节 B.肘关节 C.肩关节 D.膝关节2.人体的每一个动作都是( )A.一块骨骼肌在神经系统的支配下单独完成的.B.多个肌群在神经 杂交育种需要选育能够稳定遗传的个体,淘汰不需要的个体.如果从一杂合的亲本中选育某一显性性状（该性状是单基因控制的）,每次自交后都淘汰掉隐性个体,则需经多少代连续自交能使稳定 下列生物中,属于原核生物的是[ ]A.噬菌体B.酵母菌C.团藻D.色球藻 各阶段生成ATP最少的是：A、葡萄糖变为C3H4O3B、C3H4O3氧化脱酸C、电子传递D、丙酮酸与水结合弱弱地问一下D这个选项 将一植物置于密闭、透明的玻璃罩内,在适宜的温度、光照和充足的矿质养料条件下培养一段时间后,容器内CO2的含量有所下降,此时与实验初始相比可以断定植物体 A．合成有机物的速度加快 B 下列有关计算结果,错误的是A.DNA分子上的某个基因片段含有600个剪辑对,由它控制合成的蛋白质分子最多含有的氨基酸数为200个B.用一个被氮15标记的噬菌体（含一个双链DNA分子）去侵染含氮14 1．与染色体复制有直接关系的细胞结构是（ )A细胞核和核糖体B细胞核和中心体C内质网和高尔基体D核仁,核膜和核糖体2．下列各项中,在遗传上起重要作用的是（ ）A线粒体 B细胞核 C中心体 D 皮肤是人体最大的器官,我们的皮肤（ ）A．能够分泌杀菌物质和吞噬细胞对人体起到重要保护作用B．如果表皮受到损伤,会导致出血C．在真皮内分布着感觉神经末梢D．真皮内的生发层能不断 .要100道 线虫分泌的一种蛋白质能特异性识别体内凋亡细胞表面的磷脂酰丝氨酸,同时该蛋白质也识别并结合吞噬细胞表面某受体蛋白,从而促进了吞噬细胞识别、摄取、消化、清除凋亡细胞.该蛋白质 1、人类重度免疫陷症（SCID）是由于腺苷酸脱氨酶基因(ada)发生突变所致.1990年,美国进行首例SCID的临床基因治疗,最终注射到患者骨髓组织的是（ D ）B、转ada的病毒.D、转ada的T淋巴细胞.为什 下列哪种认识是不正确的：A.选择适合自己的运动休闲项目,坚持体育锻炼B.烟酒对人体无益,宜少不宜多C.积极参加集体活动,助人为乐,对健康有利D.早吃饱,午吃好,晚吃少,而且各种营养要合理 初二生物选择题,求解答 绿色植物在生态环境中的作用是（ ）A.调节碳氧平衡 B.净化空气 C.杀菌 D.以上都是 选择题答案是高中生物 高中生物选择题求答案 1)If city noises ___from increasing,people will have to shout to be heard even at the dinner table 20 years from now.A are not kept B do not keep 2)Jane was made ___the truck for a week as a punishment.A to wash B to be washing（to be doing是什么 1.These wild flowers are so special I would do ___I can to save thenmA.whatever B.whichever2.Eat __you like and leave the others for ___comes in late.A.any;who B.every;whoever C.whichever;whoever D.either;whoever 讲讲选什么,以及为什么-Have you found the information about famous actors___you can use for the report?-Not yet.I'll search some___the Ineternet.A.which;on B.who;through C.that;in D.which;about-They have to wait for__bus.-___.A.another;So do 1.John is the tallest boy in the class,_______ accourding to himself.A.five foot eight as tall as B.as tall as five foot eight C.as five foot eight tall as D.as tall five foot eight as2.He had never thought that his succeed would come when he_______w 26.It was difficult for parents to________ their children during rush hours especially after such a heavy snow.A.bring up B.pick up C.take up D.make up27.--Did you tell him that our plan had to be changed because of his absence?--Oh,no,1 forgot.1 ___ Reading is very _____ .It often makes me feel _____.A.relaxing; relaxing B.relaxing;relaxed C.relaxed;relaxing D.relaxed;relaxedThere _____ a sports meeting on the playground next week.A.will have B.has C.will be D.be 给小弟讲题,这两题就是讲不明白了,我以前语法就很次.1.I__you__in London.How long have you been there?A.don't know wereB hadn't know are2.Did she tell you__?A.whether did she like the presentB.whether she liked the present 求写了答案的题目的答案理由【第34题倒数第二单词不是hundred是它下面的hurried】 英语选择题答案和理由_____for mu illness I would have lent him a helping hand with his researching.A Not being B Had it not been C Without being D Not having been 写过答案的题目求答案的选择理由 5道英语选择题,要答案和理由,急用.He was sitting with his head ___ a book.A.buried B.buried in C.burying D.burying in A novel ___ "Gone with the Wind " is very famous.A.calling B.call C.to call D.calledI am used ___ late at night.A.to sle 英语选择题（1) 1.He has written several books,but his last works _____ well known among his friends.A.haveB.have beenC.isD.are2.Today’s modern TV cameras require ______ light as compared with the earlier models.A.only a fewB.only fewC.only a 一道英语选择题,哪个是正确答案?Oh,no!I have broken the vase.What ____ say?A.am I going to B.will IC.have I to D.must I Choose the best answer to the following sentences.1.You have to _______ the lace before you can take off your shoes.A.undergo B.underline C.unlock D.undo2.We should _______ advantage of all educational opportunities.A.make B.get C.take D.have3.Cecil every time you____,start all over again.A.will fail B.failed C.fail D.have been failingsimon is_____to make us all.A.enough funny:laugh B.funny enough;laughC.enough funny;to laugh D.funny enough;to laughhe wasn't used to___by plane and he used to sic