The expression “to debase humankind” in Para. 3 could be explained as______.
A. to provide base to humankind
B. to reduce the value of humankind
C. to get rid of humankind
D. to compete with humankind
正确答案：B
[解析]debase使……贬值故选B
Theexpression“todebasehumankind”inPara3couldbeexp
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