搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下列哪种一项叙述以表明动物细胞正在进行有丝分裂（）

A.核糖体合成活动加强

B.线粒体产生大量ATP

C.中心体周围发射出星射线

D.高尔基体数目显著增多

答案

参考答案：C

填空题

Beijing: The United States and North Korea had their first ________in four months here this afternoon as part of the ________negotiations on how to end North Korea’’s nuclear program, but diplomats played down prospects for________.James A. Kelly, assistant________, and Kim Yong II, North Korea’’s deputy foreign minister, met ________of formal discussions, ________on direct dialogue that began after a stormy meeting ________in which North Korea warned that it was moving quickly to ________nuclear arms.The Bush administration had insisted ________that it would only hold talks with North Korea ________because, it argued, only ________pressure would persuade North Korea to________. It got its way when North Korea dropped its insistence on ________and agreed, after extensive efforts by China, to hold unusual simultaneous negotiations with ________,________,________and ________as well as the United States.Though Bush administration officials had not ________talking privately with the North Koreans during________, the fact that Mr. Kelly and Mr. Kim met on the first day was seen as a sign of ________by the American side.
查看答案
问答题 简答题

清营凉血法常用者有哪几种？分别叙述其作用、主治证候、代表方药。
查看答案