（英文）小白问题This model worker is worth ___________.A.learning fromB.being learned fromC.be learned fromD.to learn from我选了A没看懂 =_|||

（英文）小白问题This model worker is worth ___________.A.learning fromB.being learned fromC.be learned fromD.to learn from我选了A没看懂 =_||| 英文音标[w]发乌还是窝另外汉语声母w发什么音（小白问题）是都发乌吗 this model plane may be______（they） Is this your model plane?(改同义句） Is this your model plane（同义词）Is this（）（）（） How much does this model cost? Mr.Frith asked the assistant.(变为间接引语） look,children.this is a model 非线性规划问题（数学建模 lingo）,求指教model:title 1-1；sets:jidu/1..3/:x,r,w;endsetsdata:w=40 60 80;enddatamin=@sum(jidu:50*x+0.2*x*x+4*r);@for(jidu:r+x>w);@for(jidu:x<100);r(1)=0;@for(jidu(i)|i#lt#3:r(i+1)=x(i)-w(i)+r(i));end 求助几个关於civil rights movement的问题(急!)最好用英文回答（英文回答追加分数）急!1.What were the major organizations in this movement?How did these organizations work together?How did they conflict with each other?2.What w 汽车模型的英文到底是car model还是model car?是不是：英式为car model,美式是model car? I don't like this model.和I dislike this model 有什么不一样? 帮我看看这句英文写得对不对?A physical model combined with a mathematical model was(were) used for probing into this problem. 最主要是,这种情况该用was还是were? 一道初中英语题(冠词问题)___ are usually cheap in this shop 请问填Model ships还是The model ships?是选择题哦，一定要选一个……我很纠结 A coupled with B 后跟 is 还是 are?例句：A model coupled with B model was/were used for this simulation.用was还是were?同样的问题出现在combined with又该如何? This car is in fashion.Many c( ) like this model 英文题The model（ ）is not jack`s.It`s mine. lingo中11个城市,从1到11的最短路问题model:sets:cities/1..11/;roads(cities,cities):w,x;endsetsdata:w=0;enddatacalc:w(1,2)=2;w(1,3)=8;w(1,4)=1;w(2,3)=6;w(2,5)=1;w(3,4)=7;w(3,5)=5;w(3,6)=1;w(3,7)=2;w(4,7)=9;w(5,6)=3;w(5,8)=2;w(5,9)=9;w(6,7)=4 一些化学问题（英文版）1.Ionic compounds have very high melting points.Explain at least two forces that cause this physical characteristic.2.List bonds in order of bond strengtha.Hydrogen bond between H2Ob.Covalent bond between H and O in w