问题如图（14和15题）,求讲解._百度作业帮
问题如图（14和15题）,求讲解.
14.必须是杂合子.父亲：Aa 母：Aa生了一个犯病孩子,肯定有A题目又说AA会死.所以只能是Aa即杂合子15.从丈夫的姐姐和妻子的哥哥都有病可知其基因为aa所以其父母的基因为Aa Aa可知妻子的基因（不可能是aa）是Aa可能性为2/3 是AA可能性是1/3 丈夫基因的可能性与妻子相同因为只有丈夫妻子都为Aa时才会生出患病小孩所以生患病小孩概率为（2/3）*（2/3）*（1/4）=1/9
在14题中，分析题意可知该病为常染色体上的显性遗传（假设基因为A）并且显性纯合（AA）致死。由此，此患者的基因型必为杂合即为Aa。同时，其父母健在且也为该病患者，毫无疑问其父母的基因型也为Aa，Aa.则有，患者的父母要生下一患病孩子的话，则其必为杂合子（考虑到纯合致死）。选A在15题中，可知黑尿症为常染色隐形遗传（基因设为aa）。由此，可得II-1和II-4的基因型均为aa。同时，容易得...语法15题,求详解21.That trumpet player was certainly loud.But I wasn’t bothered by his loudness _____by his lack of talent.A.so much as B.rather than C.as D.than22.The less the surface of the ground yields to the weight of a fully-loaded truck,_____ to the truck.A.the grea_百度作业帮
语法15题,求详解21.That trumpet player was certainly loud.But I wasn’t bothered by his loudness _____by his lack of talent.A.so much as B.rather than C.as D.than22.The less the surface of the ground yields to the weight of a fully-loaded truck,_____ to the truck.A.the grea
21.That trumpet player was certainly loud.But I wasn’t bothered by his loudness _____by his lack of talent.A.so much as B.rather than C.as D.than22.The less the surface of the ground yields to the weight of a fully-loaded truck,_____ to the truck.A.the greater stress is B.greater is the stressC.the stress is greater D.the greater the stress 23._____ of the twins was arrested,because I saw both at a party last night.A.None B.Both C.Neither D.All 24.I can’t go —for one thing,I have no money,and _____ I have too much work to do.A.what’s more B.as well C.for another D.in addition 25.The patient’s progress was very encouraging as he could _____ get out of bed without help.A.nearly B.hardly C.merely D.barely26.He was _____ to tell the truth even to his closest friend.A.too much of a coward B.too much the cowardC.a coward enough D.enough of a coward27.John is_____ hardworking than his sister,but he failed in the exam.A.no less B.no more C.not less D.no so28.His remarks were _____ annoy everybody at the meeting.A.so as to B.such as to C.such to D.as much as to29.He must give us more time,_____ we shall not be able to make a good job of it.A.consequently B.otherwise C.therefore D.doubtlessly30.It was ten years ____ he returned to his hometown and set out to revenge his dead father.A.since B.that C.before D.when31.Beneath our feet _____ that our life depends on for food and clothing.A.the earth lay B.the earth lies C.lies the earth D.does the earth lie32.So badly _____ in the car accident that he had to stay in hospital for a few months.A.did he injure B.injured himC.was he injured D.he was injured33.He is not under arrest,______ any restriction on him.A.or the police have placed B.or have the police placedC.nor the police have placed D.nor have the police placed34.___ both sides accept the agreement ___ a lasting peace be established in this region.A.Only if,will B.If only,would C.Should,will D.Unless,would35 A hibernating animal needs hardly any food all through the winter,_____?A.need it B.needn’t it C.does it D.doesn’t it
1A not... so much as...的意思是不如……鼓手演奏的声音相当大,但是我对其响度之大的厌烦不如对其无才2DS这是the more the more 句式,表示越来越.要求将the more , the more 至于句首.所以B和C排除. AD当中A有谓语is,故选A.翻译：满载的卡车于地面接触面积越小,卡车承受的压力越大.按照我的想法,最好的选项应为：the greater the stress is 3c neither 是两者中的的任何一个都不4C FOR ONE THING ...FOR ANOTHER5C
not less than 不少于6c such as to
达到这样的程度以致7B TOO...TO太怎么样已不能8A 几乎.其余的意思不服9b otherwise 否则10a since自从11c 地点状语位于句首要用全部倒装12c 他是被伤了,要用被动,如果用陈述句就是he was injured,因为此处so提前表强调所以后面倒装,就成了was he injured.13d not.nor 既不也不14d 除非
C,need 是实义动词不是情态动词,hardly 是否定副词,因此前面的分句是否定句
21 A 22 D 23 C 24 C 25 A26 A 27 A 28 B 29 B 30 C31 B 32 D 33 D 34 D 35 C
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求过以后怎么舍去没看懂
注意C和H原子的数目，烷烃是2n+2。这是最多的H数量了。多了肯定不对了啊
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太给力了，你的回答完美地解决了我的问题，非常感谢！
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或C(n)H(2n-3)N.，则n=10;10，可算出不饱和度不为4，9&lt，假设的是一个N;n&lt，计算其相对分子质量，所以N不会是一个，同理可得n=7，即该物质为C10H8（2）一个酯基为一个不饱和度，相对分子量永远是奇数，当n=9时，不会是128.则无论其不饱和度为多少，N的相对原子量为14，最起码该有机物有四个不饱和度;n&lt，则该物质可记为C(n)H(2n+1)N，结构简式中除了酯基外，则6&lt..，C为12;7.，一个不饱和度少两个H，与题意矛盾,或C(n)H(2n-1)N，多一个N则少一个H，记该物质为C(n)H(2n+2)N2，则记该物质为C(n)H(2n-6) ，记该物质为C(n)H(2n)O2，设N2个，多一个双键或环即可（3）假设N一个（1）根据题意
一开始设的化学式没看懂
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出门在外也不愁初二15题求解析，详细点，想不明白噢！马上给分哦，最好把答案写下来再拍下来 15 题_百度知道
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1)时;2)时取“=”所以圆柱体体积的最大值是π&#47.y&#39;0,1&#47,其中x2&&lt,x2是方程 t=x&#47原题是:由已知A;(x^2+1)即tx^2-x+t=0 (0&(x^2+1)的值域是(0.四边形ABCD是矩形时设y1=y2=t,函数在其上单减x=1时,y2x2^2-x2+y2=0,y1),B(x2。希望能帮到你、B在曲线yx^2-x+y=0上;2)√((1-4t^2)(4t^2))≤(π/2,函数在其上单增,D(x1,t∈(0;t圆柱体体积V=πt^2|x1-x2|=πt^2*((√(1-4t^2))/1/(x^2+1)^2x∈(0;t)=(π&#47,+∞)时;4,y2);(x^2+1)的图象上,则此矩形绕x轴旋转一周得到的圆柱体体积的最大值为___,1/x1&&=-(x-1)(x+1)&#47,在此处取最大值1&#47,即函数y=x&#47,C(x2,0);4∈(0;2];2)((1-4t^2)+(4t^2))&#47,x∈(1。x∈(0,函数y=x/4当1-4t^2=4t^2即t=(√2)&#47,+∞)时;2=π&#47,1&#47,0);0;2)的两根得|x1-x2|=(√(1-4t^2))/=0,且y1x1^2-x1+y1=0;t&2)圆柱体体积V=πt^2|x1-x2|x1.若四边形ABCD是矩形,y&#39.解,y&#39;0,y&#39:已知点A(x1
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太给力了，你的回答完美地解决了我的问题，非常感谢！
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