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【单选题】
We must ______ the assumption that what we have done would have no lasting effect on the global environment.A.
reject
B.
discard
C.
refuse
D.
throw
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【简答题】The Ebro Delta , in Spain , famous as a battleground during the Spanish Civil War , is now the setting for a different contest , one that is pitting rice farmers against two enemies : the rice - eatin...
【判断题】当煤矿井下两巷道贯通前，在相距20m时，地质测量人员要下达贯通通知书。必须停止一个工作面的作业，只准从一个工作面向前掘进，停止作业的掘进工作面可以停止通风。()
A.
正确
B.
错误
【简答题】What is Spain famous for?
【单选题】隧道施工中，两个相向贯通开挖的开挖面的距离只剩下（）时，只允许从一个开挖面掘进贯通，另一端应停止工作并撤走人员和机具设备，在安全距离处设置警示。
A.
15m
B.
20m
C.
25m
【简答题】The Ebro Delta , in Spain , famous as a battleground during the Spanish Civil War , is now the setting for a different contest , one that is pitting rice farmers against two enemies : the rice-eating ...
【简答题】The Ebro Delta, in Spain, famous as a battleground during the Spanish Civil War, is now the setting for a different contest, one that is pitting rice farmers against two enemies: the rice-eating giant...
【单选题】开采冲击地压煤层时，在同一煤层的同一区段集中应力影响范围内，两个工作面采用综合机械化掘进相向掘进，在相距（）时，必须停止其中一个掘进工作面。
A.
20m
B.
30m
C.
50m
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