There was a rapid increase in population in the last century.（　）

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There was a rapid increase in population in the last century.（　）
A.slow
B.high
C.shocking
D.quick

本题关键词:僵a,ECF-A,EP21-A,EP6-A,EP18-A,EP7-A,Lp(a),Lp（a）,A-aDO2,抗A;