如图所示细胞分裂的不同时期与每条染色体DNA含量变化的关系,下列说法错误的是( ) A.AB段可以表示在有丝分裂或减数分裂过程中DNA分子的复制
初夏的早晨,院子里的花儿在空气中散发着淡淡清香,花朵上的露珠在阳光下晶莹剔透,图示的情景中,应用物理知识分析正确的是( ) A.花儿能散
—Which team do you think _________ the game? —Hard to say. There are still ten minutes before it ends. A. won B. has won C. will win
I’m certain David’s told you his business trouble. ________, it’s no secret that he owes a lot of money to the bank.. A. However B. Anyway C. Therefore
下列有关生活常识的说法中,错误的是( ) A.“白色污染”是指废弃塑料造成的污染 B.废旧电池应该集中处理 C.人体中缺少钙人引起贫血 D.多吃
—What do you think of the concert? —There was nothing special;it was only____. A. average B. usual C. normal D. common
The manager discussed the plan that they would like to see _______ the next year. A.carried out B.carrying out C.carry out D.to carry out
2006年美国《思想之林》杂志评选“十个人类有史以来最伟大的国家”。排在前四位的国家当选的理由分别是“创造了现在的西方社会”、“创造了现代