基本呼吸节律产生于
A．脊髓 B．延髓C．脑桥 D．中脑E．大脑皮质
参考答案：B
I know the man by ____ but I have never spoken to him. [ ]
A. chance
B. heart
C. sight
D. experience
系统性红斑狼疮典型的皮疹是
A.颊部蝶形红斑
B.口、眼干燥，猖獗龋齿
C.血管痉挛
D.静脉血栓
E.小关节炎症
