产生精子的部位在
A．精囊腺
B．睾丸
C．附睾
D．前列腺
E． * * 球腺
参考答案：B
解析：精子由男性生殖器官睾丸产生。
.—When did you ______English?
—When I was in college.
A．pick up
B．take up
C．turn up
D．put up
炮制对升降浮沉的影响与气味厚薄无关。
