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单选题
_____ that the demand for power continues to rise at the current rate, it will not be long before traditional sources become inadequate
A
Concerning
B
Ascertaining
C
Assuming
D
Regarding
参考答案
参考解析
解析：
句意：假设对电的需求以当前的速度继续增长，用不了多久这些传统的资源就不够了。assume假定，以为，可以表示对将来的一种假设。assuming为现在分词形式，作状语可以引导宾语从句。从题中的it will可知事情还没有发生。assume表示对将来的一种假设，符合题意。concern涉及，关系到，不能跟宾语从句。ascertain确定，探知，虽然可以跟宾语从句，但句中说的不是确定的事，所以不符合。regard视为，看待，尊重，不能跟宾语从句。
句意：假设对电的需求以当前的速度继续增长，用不了多久这些传统的资源就不够了。assume假定，以为，可以表示对将来的一种假设。assuming为现在分词形式，作状语可以引导宾语从句。从题中的it will可知事情还没有发生。assume表示对将来的一种假设，符合题意。concern涉及，关系到，不能跟宾语从句。ascertain确定，探知，虽然可以跟宾语从句，但句中说的不是确定的事，所以不符合。regard视为，看待，尊重，不能跟宾语从句。
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