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问题 单项选择题

菠菜根的分生区细胞不断分裂使根向远处生长，在分裂过程中不会出现的是（）。

A.细胞分裂间期，中心体的两个中心粒各自产生一个新的中心粒

B.细胞分裂中期，染色体形态较固定、数目较清晰

C.细胞分裂前期，核膜和核仁逐渐消失

D.细胞分裂末期，高尔基体参与细胞壁的形成

答案

参考答案：A

解析：菠菜根分生区的细胞通过有丝分裂不断增殖，在分裂间期，完成DNA的复制和有关蛋白质的合成，不会发生中心体的复制，中心体的复制出现在低等植物和动物细胞的分裂过程中。

填空题

老版本的ZXSS10S100如果想通过集网管对其进行维护那么需要在数据管理－网络配置－（）进行相关配置。
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问答题

At a board meeting of JGP Chemicals Limited, the directors were discussing some recent negative publicity arising from the accidental emission of a chemical pollutant into the local river. As well as it resulting in a large fi ne from the courts, the leak had created a great deal of controversy in the local community that relied on the polluted river for its normal use (including drinking). A prominent community leader spoke for those affected when she said that a leak of this type must never happen again or JGP would suffer the loss of support from the community. She also reminded JGP that it attracts 65% of its labour from the local community. As a response to the problems that arose after the leak, the JGP board decided to consult an expert on whether the publication of a full annual environmental report might help to mitigate future environmental risks. The expert, Professor Appo (a prominent academic), said that the company would need to establish an annual environmental audit before they could issue a report. He said that the environmental audit should include, in addition to a review and evaluation of JGP’s safety controls, a full audit of the environmental impact of JGP’s supply chain. He said that these components would be very important in addressing the concerns of a growing group of investors who are worried about such things. Professor Appo said that all chemical companies had a structural environmental risk and JGP was no exception to this. As major consumers of natural chemical resources and producers of potentially hazardous outputs, Professor Appo said that chemical companies should be aware of the wide range of ways in which they can affect the environment. CEO Keith Miasma agreed with Professor Appo and added that because JGP was in chemicals, any environmental issue had the potential to affect JGP’s overall reputation among a wide range of stakeholders. When the board was discussing the issue of sustainability in connection with the environmental audit, the fi nance director said that sustainability reporting would not be necessary as the company was already sustainable because it had no ‘going concern’ issues. He said that JGP had been in business for over 50 years, should be able to continue for many years to come and was therefore sustainable. As far as he was concerned, this was all that was meant by sustainability. In the discussion that followed, the board noted that in order to signal its seriousness to the local community and to investors, the environmental audit should be as thorough as possible and that as much information should be made available to the public ‘in the interests of transparency’. It was agreed that contents of the audit (the agreed metrics) should be robust and with little room left for interpretation – they wanted to be able to demonstrate that they had complied with their agreed metrics for the environmental audit. Required:

(a) Explain ‘sustainability’ in the context of environmental auditing and criticise the fi nance director’s understanding of sustainability. (6 marks)
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