A:核糖体和线粒体
B:细胞膜和叶绿体
C:内质网和中心体
D:细胞膜和核糖体
I'm ________ years old and it's my _______ birthday today.
—Many students don't know how to____ stress and become worried.
—I think they should ask their parents for help.
伴随着西方思想文化的传入,中国近代的人文主义思潮逐渐形成。在19世纪末20世纪初,这一思潮的显著特点是
—What fun Tom and Jerry is!
—Yeah! I like the cartoon, too. It’s so _______.