题目

第三部分:阅读理解(共20小题,每小题2分,满分40分) 阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。 A A lot of management training each year for Circle K Corporation, a national chain of convenience stores. Among the topics we address in our course is the retention(保护力) of quality employees-a real challenge to managers when you consider the pay scale(标准)in the service industry. During these discussions, I ask the participants(参加者), “What has caused you to stay long enough to become a manager?” Some time 如图是某些细胞结构的模式图,请据图回答下列问题:(1)生物学家依据_________,将细胞分为真核细胞和原核细胞。分析图甲、乙、丙所代表的细胞,其中属于真核细胞的是_________。(2)图甲、乙丙所代表的细胞中,具有细胞壁结构的是_________;含有生物膜的是_________;含有染色体的是_________。(3)上述三种细胞的结构统一性可表现为三者都具有__________________等(任答两点)。
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