In _______ 1960s, ________ number of habitants here is very _______ ,and it was since the middle of 1970s that the population has been increasing rapidly.

A．不填; the; much

B．the; the; small

C．不填; the; large

D．the; a; small

青春期是人一生中身心发展的重要时期，下列关于青春期特征的描述不正确的是

A．内脏器官功能的日渐健全

B．身高体重迅速增长

C．出现遗精、月经等生理现象

D．男性的青春期发育更早些