they are the means by which a person announces many things about himself中为何要用by,去掉by行吗

Right means c-- They are the same首字母填空 选择正确的介词填空They are talking____ the phone means they are talking___ phone 六年级英语选择填空.①What ()it mean?It()'NO smoking'.A do,means B does means C does,mean②They()there a moment ago.A are B were C was③'Keep off the glass'()we () walk on the grass.A mean should B means shouldn't C means,should④What ()i [-B18] The companies are working together to create ______ they hope will be the best means oftransport in the 21th century.A.which B.thatC.whatD.who翻译并分析 They live 64 kilometers southeast of the capital Bogota,and these ropes are the only ____ of goi-ng to the outside world.A.means B.ideas C.roads D.streets the companies are working together to create ____ they hope will be the best means of transport in the 21st century.A.which B.what 为什么不选a? they are ( ) a.the twins b.twins radio,television and press are __of coveying news and information.a.the most three common means b.the three most common means c.the most common means d.three the most comment means怎么选, 英语翻译Prices determine how resorces are to be used.【They are also the means by which products and services that are in limited supply are rationed among buyers.】 some researchers are finding that daydreaming may be important to___mental health.Daydreaming,they say,is___good means of relaxation.A:the/不填 B：不填/the C:不填/不填 D:不填/a 英语翻译Prices determine how resources are to be used.They are also the means by which products and services that are in limited supply are rationed among buyers中的means和“by which ”有什么关系吗? If someone is broke it means they are?a.hurt b.stressed c.poor d.stupid .急,谢 means method approach way有什么区别At the meeting they discussed three___for the study of mathmatics.A.approaches B.means.C.methods D.ways approach means .methods .ways什么区别?At the meeting they discussed three different ___for the study of mathematics.a.approach b.means c.methods d.ways A:()?b:they are at the restaurant.A:( )B:they are having dininer.A:do they like the food?B: At the meeting they discussed three different () to the study of mathematics.A.approaches B.means C.methods D.ways They are _ the woods.They are _ the woods. A.in B.on C.at the companies are working together to create---- they hope will be the best means of transport in the 21st century为什么要填what