A: 6
B: 4
C: 5
⑴____ A. job B. comicC. doctor D. walkman
⑵____ A. locker B. hers C. others D .secondary
⑶____ A. Coke B. door C ball D floor
⑷____ A. look B good C too D book
⑸____ A. their B there C where D here
在“制作洋葱鳞片叶表皮细胞的临时装片”实验中,操作不正确的是( )