鸡组织滴虫病的病变主要发生在（）（792-29）
A、食道与嗉囊
B、肌胃与腺胃
C、空肠与回肠
D、盲肠与肝脏
E、喉头与气管
参考答案：D
—“Crash diets” make us lose weight fast and I am all into that.
—But it_______better to work out.
A．had
B．would be
C．wouldn’t have been
D．must have been
DFDRS系统的核心部件是什么？
A、FDIU
B、CFDIU
C、SSFDR
