停车场共有大客车和小汽车360辆,其中大客车与小汽车的比是4:5,那么停车场的大

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问题:

停车场共有大客车和小汽车360辆,其中大客车与小汽车的比是4:5,那么停车场的大客车和小汽车各有多少辆?

考点:解比例,比例的应用题
题型:解答题

一列横波如图所示,t1时刻波形为图中实线所示;t2时刻波形如图中虚线所示.已知Δt=t2-t1=0.5s,且3T<t2-t1<4T,则这列波的波速可能为

A.16m/s

B.32m/s

C.52m/s

D.60m/s

题型:解答题

以下对于原材料采购员的职责规定,较准确的是( )。

A.负责采购生产用的全部原材料

B.负责生产用的全部原材料的计划、采购、废旧物资回收处理工作

C.按品种、质量、进度、费用和资金要求为生产提供全部原材料

D.负责生产过程主要原材料的采购

题型:解答题

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:

(c) Defi ne ‘environmental risk’. Distinguish between strategic and operational risks and explain why the environmental risks at JGP are strategic. (10 marks)

题型:解答题

下列哪些情况是急诊剖胸探查手术的适应证()

A.食管破裂

B.严重肺裂伤

C.进行性血胸

D.胸壁大块缺损

E.气胸,患侧肺轻度萎缩

题型:解答题

组织风险包括项目承包方管理人员的能力、施工机械操作人员的能力和经验。()

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