下列哪项是中枢性性早熟的病因之一（）

A.肾上腺皮质增生症

B.睾丸间质细胞瘤

C.单纯 * * 早发育

D.原发性甲状腺功能减低症

E.McCune-Albright：综合征

Not only ______ the book, but he remembered what he had read.[ ]

A. he had read

B. did he read

C. he read

D. was he reading