关于人体吸虫繁殖方式的叙述正确的是（）

A.幼虫和成虫均进行无性生殖

B.幼虫和成虫均进行有性生殖

C.幼虫进行无性生殖，成虫进行有性生殖

D.幼虫进行有性生殖，成虫进行无性生殖

E.只在成虫期进行有性繁殖

My brother has changed a lot. He used to be ______, but now he is tall. [ ]

A. short

B. thin

C. pretty

D. heavy