A:核糖体、线粒体、内质网和高尔基体
B:线粒体、内质网、高尔基体和中心体
C:溶酶体、线粒体、核糖体和高尔基体
D:核糖体,叶绿体、高尔基体和内质网
We need two students____ (clean)the classroom.
They need help at the old ____ (people)home
Do you make any ____ (friend)here?
Mr.Wang teaches ____(they)math.
Sally is busy ____ (do)her homework.
根据澳大利亚和巴西示意图,判断下面关于两国相同点的说法,正确的是( )