【单选题】¿En qué zona de España localizas Cataluña?
【单选题】下列是生物研究中常用的实验方法,不正确的是 [ ]
A.
研究细胞器结构和种类,采用差速离心法和显微观察法
B.
提取和分离叶绿体中的色素,采用研磨过滤法和纸层析法
C.
探究酵母菌呼吸方式,采用对比实验法和产物检测法
D.
观察植物细胞有丝分裂过程,采用活体染色法和持续的显微观察法
【多选题】五四运动是爆发于民族危难之际,是一场以先进青年知识分子为先锋、广大人民群众参加的( )
【简答题】It is worrying that nowadays more and more agers have free access to the Internet. Ideas for reference: T he Internet is a virtual world of unpleasant stuff of all kinds . T eenagers are vulnerabl...
【单选题】五四运动是一场以先进青年知识分子为先锋、广大人民群众参加的彻底反帝反封建的 伟大爱国革命运动 。 The May Fourth Movement was ______________________________ pioneered by advanced young intellectuals and participated by the people from all walks of l...
A.
a great social revolutionary movement
B.
a great patriotic and revolutionary campaign
C.
a great enlightenment and new cultural movement