题目

用显微镜观察洋葱表皮细胞装片时，在视野中看到的细胞物像是                                                                                                                                                                                                                     A               B                 C           �—I hear you’ve got a new iPhone 4S. ______ I have a look?—Yes, certainly. A．MayB．DoC．ShallD．Should