– Tom spent his childhood in England . Is it true?

--- No. It was in China ______he spent his childhood.

A．where

B．that

C．which

D．in which

春天日照逐渐延长时，鸟类大多进入繁殖季节。调节鸟类繁殖活动的图解如下请回答：

据图判断，若要验证B的生理作用，（）（能、不能）用去除性腺的鸟作为实验动物，其原因是（）。