伤寒最显著的病理改变部位是在（）
A.肠系膜淋巴结
B.回盲部
C.脾
D.回肠末端
E.肝
参考答案：D
Mary likes chicken, and her sister Jenny ______ likes chicken. [ ]
A. too
B. also
C. either
D. doesn't
现代学校教育萌芽于（ ）时期。
