更多"[不定项选择题]某公司向客户供应的产品，使用中常有各种程度不同的质量问"的相关试题:
[不定项选择题]某公司向客户供应的产品，使用中常有各种程度不同的质量问题发生，客户反映非常强 烈，要求取消合同。公司决定请质量专家诊断。专家诊断认为问题的原因是在产品形成过程 的质量控制中，未就产品质量特性对其适用性的影响进行分析。[2007年真题]
公司技术部开始学习编制质量特性分析表，编制“分析表”依据的主要技术资料 有（ ）。
A.产品的设计技术文件（包括图样）
B.产品的说明书（或用户手册）
C.产品消耗件明细表
D.产品形成的作业流程及作业规范
[不定项选择题]一日，客户A需从期货公司转出保证金100万元，期货公司和客户应通过（ ）进行转账。
A.期货公司备案的期货保证金账户
B.期货公司有有资金账户
C.客户登记的期货结算账户
D.期货交易所专用结算账户
[不定项选择题]医疗单位供应和调配毒性药品,应
A.凭盖有医师所在的医疗单位公章的正式处方
B.可不凭《医疗用毒性药品管理办法》规定
C.应当付炮制品
D.必须经2人以上复核无误
E.凭医生签名的正式处方本题知识点：医疗用毒性药品管理,
[不定项选择题]我国货币供应量中M2为( )亿元。
A.130799.37
B.134334.41
C.120048.33
D.127415.41
[不定项选择题]为客户制定家庭财务保障规划包括了以下哪些步骤( )
A.风险识别
B.风险评估
C.保险产品建议
D.督促建议实行
E.评估风险管理效果
[不定项选择题]室内热水供应管道长度超过40m时，一般应设（ ）。
A.套管伸缩器
B.L形管段
C.z形管段
D.方形补偿器
[不定项选择题]客户的风险属性一般分为( )。
A.风险承受能力层面
B.风险容忍态度层面
C.风险认知度层面
D.资金承受能力层面
E.家庭层面
[不定项选择题]在热水供应系统中，应装设温度计的设备包括（ ）。
A.水加热器
B.疏水器
C.伸缩器
D.储水器
[不定项选择题]共用题干
Ants Have Big Impact on Environment as“Ecosystem Engineers”
Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.
Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indirectly impact the local populations of many animal groups,from decomposers to species much higher up the food chain.
Secondly,they prey on a wide range of other animals,including larger prey which can be attacked by vast numbers of ant workers.
Dirk Sanders,an author of the study from the university's Centre for Ecology and Con-servation,said:“Ants are very effective predators which thrive in huge numbers. They're al-so very territorial and very aggressive,defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area.”
“In this research,we studied for the first time how big this impact is and the subtleties of it.What we found is that despite being predators,their presence can also lead to an in-crease in density and diversity of other animal groups. They genuinely play a key role in the local environment,having a big influence on the grassland food web,”Sanders said.
The study,carried out in Germany,studied the impact of the presence of different com-binations and densities of black garden ants and common red ants,both species which can be found across Europe,including in the UK.It found that a low density of ants in an area in-creased the diversity and density of other animals in the local area,particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect,showing that predation is counteracting the positive influence.
Dr Frank van Veen,another author on the study,said:“What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels,but as the number of ants increases,their predatory impacts have the bigger effect一thereby counter-acting the positive influence via ecosystem engineering.”
Ants are important components of ecosystems not only because they constitute a great part of the animal biomass but also because they act as ecosystem engineers.Ant biodiversity is incredibly high and these organisms are highly responsive to human impact,which obvi-ously reduces its richness. However,it is not clear how such disturbance damages the main-tenance of ant services to the ecosystem. Ants are important in below ground processes through the alteration of the physical and chemical environment and through their effects on plants,microorganisms,and other soil organisms.
Dirk Sanders'study centered on how ants______.
A.can manage to thrive in huge numbers
B.defend their resources and territory against other predators
C.attack those invading animals for survival
D.produce such a big impact on the environment
