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Text C Food Security and Sustainable Agriculture It is time to rethink how we grow, share and consume our food. If done right, agriculture, forestry and fisheries can provide nutritious food for all and generate decent incomes, while supporting people-centered rural development and protecting the environment. But right now, our soils, freshwater, oceans, forests and biodiversity are being rapidly degraded. Climate change is putting even more pressure on the resources we depend on, increasing risks associated with disasters such as droughts and floods. Many rural women and men can no longer make ends meet on their land, forcing them to migrate to cities in search of opportunities. A profound change of the global food and agriculture system is needed if we are to nourish today’s 925 million hungry and the additional 2 billion people expected by 2050. The food and agriculture sector offers key solutions for development,and is central for hunger and poverty eradication. Secretary-general of the United Nations has launched a Zero Hunger Challenge, inviting all nations to be boldly ambitious as they work for a future where no one goes hungry.
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【简答题】试述油脂氢化类型、过程及意义。
【单选题】护士指导患者正确使用人工肛门袋,下列错误的是
A.
肛门袋内有2/3排泄物时,须进行更换
B.
选择大小合适的肛门袋
C.
用清水清洗肛门袋
D.
肛门袋需晾干后备用
E.
造口周围皮肤干燥后才可安置造口袋
【判断题】侯车室是地铁车站的最主要部分,是分散上下车人流、供乘客乘降的场地。
A.
正确
B.
错误
【简答题】什么叫换路?电路换路时遵循什么规律?元件的什么物理量在换路时具有过渡过程?
【单选题】护士指导患者正确使用人工肛门袋,下列错误的是
A.
肛门袋内充满2/3排泄物时,须进行更换
B.
选择大小合适的肛门袋
C.
用清水清洗肛门袋
D.
肛门袋需晾干后备用
E.
造口周围皮肤干燥后才可安置造口袋
【简答题】GTO的开通时间由 _________ 和 _________ 组成。
【单选题】C床身导轨的几何精度,即是导轨在垂直平面和()内的不直度
A.
斜面
B.
水平面
C.
平行面
D.
交叉面
【单选题】护士指导患者正确使用人工肛门袋,下列错误的是:
A.
肛门袋内充满2/3排泄物时,须进行更换
B.
选择大小合适的肛门袋
C.
用清水清洗肛门袋
D.
肛门袋需晾干菜备用
E.
造口周围皮肤干燥后才可安置造口袋
【简答题】垄断竞争行业实现长期均衡时,企业的经济利润为 ( )。
【简答题】信息的()就是要保证数据没有丢失,没有被删除或篡改。
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