The duplicates are attached to each other at a constricted region called the centromere.對偶體彼此相連于稱為著絲粒的縮小的區(qū)域.Following the replication of chromosomes, resultant chromatids remain attached at the centromere.隨著染色體的復制, 著絲粒始終...
理查德·張伯倫已經(jīng)同意接拍《荊棘鳥》的續(xù)集。Richard Chamberlain has agreed to make a sequel to "The Thorn Birds".理查德叔叔吟誦了《圣經(jīng)》中的一章，又即興作了一段祈禱文。Uncle Richard intoned a chapter from the Bible and improvised a prayer.理查德·鄧伍迪在職業(yè)賽馬騎師冠軍賽中領先其他選手。Richa...
豪謹慎地和郵政副部長丹尼爾·C.羅珀拉近關系。Howe carefully cultivated Daniel C. Roper, the Assistant Postmaster General.他謹慎地瞥了一眼房間里的其他人。He glanced discreetly around the room at the other people.那兩個記者謹慎地保持距離跟在后面。The two journalists followed a...