一位村干部与乡镇干部、其他村干部和村名等人建立的角色关系，叫（）
参考答案：角色丛
–So far _______________.
-- That’s too bad.
A．we received no letter from him
B．he haven’t send us any message
C．nothing from him has been received
D．we won’t hear from him
流行性出血热发热期体征包括()
A.上臂潮红
B.眼结合膜出血
C.颜面潮红
D.颈部发红
E.胸部发红
