A:4
B:3
C:2
D:1
⑴We can't swim in the lake?____ A.
⑵There is a toilet here.____ B.
⑶We should keep quiet in the library.____ C.
⑷We can't walk on the grass.____ D.
⑸We can eat here.____ E.
出国旅游的中国游客,在哪个国家遇到的语言障碍最小( )
植物细胞分裂的顺序是( )
①细胞质分成两份,每份含有一个新的细胞核;
②细胞核分裂成两个新的细胞核;
③母细胞中央形成新的细胞膜和细胞壁.