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【单选题】
What is the relationship between a natural resource use peak and the boundary value for a specific planetary boundary?(Please select one answer)
A.
We have reached a peak for every single natural resource associated with planetary boundary processes
B.
A peak in a natural resource use implies we have transgressed a planetary boundary and could be heading towards a tipping point
C.
A peak in a natural resource use does not necessarily indicate whether we may be nearing a boundary value for a specific planetary boundary
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参考解析：
刷刷题刷刷变学霸
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【多选题】腰骶丛神经MRI检查技术包括()
A.
长TE的3D-SPIR序列
B.
FSE重T2-SPIR序列
C.
背景抑制弥散加权成像(DWIBS)
D.
选择性水激发PROSET序列
【单选题】Kachin in Myanmar language means people who are good at ( ).
A.
sword martial art
B.
singing and dancing
C.
hunting
D.
farming
【单选题】According to Prof. Rockström, what is the implication of the planetary boundaries framework with respect to issues of justice and fair distribution of remaining ecological space?(Please select one ans...
A.
The implication is that the international court of justice needs to rule over individual nation states responsibility for staying within the safe operating space.
B.
The planetary boundaries framework has been defined in order to indicate a just distribution of remaining safe operating space, taking into consideration that all humans have the right to development.
C.
The implication of a limited safe operating space implies that the distribution of that space is an issue of justice and equity and that all humans have the right to development.
D.
The implication is that all nations must fight for their right to the remaining ecological space.
【单选题】The direction of Munao Zongge Dance is （ ）
A.
north-south-north
B.
south-north-south
C.
east-west-east
D.
west-east-west
【单选题】When representatives of the world’s nations met at the 2012 UN Conference on Sustainable Development in Rio de Janiero, Oxfam, an international confederation advocating against poverty and injustice.....
A.
Publicly opposed the planetary boundaries concept on the grounds that it implies geoengineering will be needed by 2020.
B.
Proposed "social foundations” for use alongside the "environmental ceiling” marked by the planetary boundaries
C.
Reviewed the economic policies of the biggest nations to identify financial planetary boundaries.
【单选题】简述外周神经常用序列: 解析:常规成像可用快速自旋回波(FSE/TSE)T2加权序列,结合反转恢复技术()。 MRN常用SPACE_STIR /CUBE_IR
A.
2加权成像,结合非选择反转脉冲用于抑制脂肪及肌肉信号,具有较高空间分辨率,最新结合抑制血流信号技术,可在平扫时较好抑制血管内信号。静脉给予对比剂后扫描,由于缩短T2值效应,可更好地抑制血管及淋巴组织信号。外周神经也可采用DWIBS背景信号抑制扩散成像:利用弥散加权序列背景被充分抑制,图像有较高对比,但空间分辨率及信噪比较低,且因使用弥散序列,图像畸变较大。近来也有采用DIXON水脂分离技术T2加权成像:利用多回波技术,不同回波水与脂肪内氢质子存在相位差异,计算出水图去除脂肪信号干扰,显示外周神经,受磁场均匀性影响较小。
【单选题】It is said that Ningguanwa, the ancestor of the Jingpo people, learned Munao Zongge Dance from ( )
A.
peacocks
B.
roosters
C.
fishes
D.
birds