伤寒病消化道病变主要位于
A．空肠黏膜上皮细胞
B．回肠黏膜上皮细胞
C．盲肠
D．回肠下段集合淋巴结与孤立淋巴滤泡
E．肠系膜淋巴结
参考答案：D
—Would you please tell me _____ next?
—Think it over. You'll find a good way. [ ]
A. when to do
B. how to do
C. what to do
D. where to do
月谷
