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【单选题】
Food Safety and Foodborne Illness Food safety is an increasingly important public health issue. Governments all over the world are intensifying their efforts to _(5l)food safety. These efforts are in response to an increasing number of food safety problems and (52)consumer concerns. Foodborne illnesses are defined as diseases, usually either infectious or toxic(有毒的) in nature, caused by agents that _(53) the body through the ingestion(摄取) of food. Every person is _(54) risk of foodborne illnesses. Foodborne diseases are a widespread and growing public health _ _(55) , both in developed and developing countries. The global incidence of foodborne diseases is difficult to _ (56) , but it has been reported that in 2005 alone 8.million people died from diarrhoeal(腹泻)diseases. A great pro-portion of these _(57) can be attributed to contamination(污染)of food and drinking water. Ad- ditionally, diarrhoea is a _(58)cause of malnutrition(营养不良)in infants and young children. In industrialized countries, the percentage of the population suffering from foodborne diseases each year has been _(59) to be io% up t0 30%. In the'United States of 'America, for example, around 76 million cases of foodborne diseases, resulting _ (60) 325, 000 hospitalizations and 1 5,000 deaths,are estimated to occur each year. _(6l)less well documented, developing countries bear the brunt(首当其冲)of the problem due to the presence of a wide _ _(62)of foodborne diseases,including those caused by parasites (寄生虫). The high prevalence of diarrhoeal diseases in many developing countries suggests major _(63)food safety problems. In partnership with other stakehojders, who is developing _ (64)that will further promote the safety of food. These policies _(65)the entire food chain from production to consumption and will make use of different types of expertise(专长). 51
A.
meet
B.
improve
C.
provide
D.
reach
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【判断题】企业以经营租赁方式租入的固定资产发生的改良支出,应直接计入固定资产成本。()
A.
正确
B.
错误
【简答题】企业以经营租赁方式租入的固定资产发生的改良支出,企业应通过“固定资产”科目核算。()
【简答题】以经营租赁方式租入的固定资产发生的改良支出,企业应通过“固定资产”科目核算。( )
【单选题】企业以经营租赁方式租入的固定资产发生的改良支出,应计入“固定资产”单独核算。 ( )
A.
正确
B.
错误
【简答题】企业以经营租赁方式租入的固定资产发生的改良支出,应计人“固定资产”单独核算。 ( )
【多选题】将100 kPa压力下的氢气150 mL和45 kPa压力的氧气75 mL装入250 mL的真空瓶,则氢气和氧气的分压分别为( )kPa。
A.
60
B.
27
C.
73.5
D.
13.5
E.
145
【简答题】企业以经营租赁方式租入的固定资产发生的改良支出,应记入“固定资产”单独核算。()
【单选题】氧气表的减压器,将来自氧气筒内的压力减低为()
A.
1-2kg/cm 2
B.
2-3kg/cm 2
C.
3-4kg/cm 2
D.
4-5kg/cm 2
E.
5-6kg/cm 2
【简答题】将压力为100 kPa的氢气150 cm 3 ,压力为50 kPa的氧气75 cm 3 ,压力为30 kPa的氮气50 cm 3 压入250 cm 3 的真空瓶内。求:(1)混合物中各气体的分压力;(2)混合气体的总压力;(3)各气体的摩尔分数。
【单选题】恒温下,将压力为p的0.8mol氮气和压力为p的0.2mol氧气混合为压力为p的混合气。若设氮气和氧气均为理想气体,则其熵变应为何值? ()
A.
ΔS=0
B.
ΔS=0.4184JK -1
C.
ΔS=0.8368JK -1
D.
ΔS=4.184JK -1
E.
ΔS=8.368JK -1
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