以物抵债主要通过以下两种方式：（）和法院、仲裁机构裁决抵债。
A.协商抵债
B.直接过户
C.协议抵债
D.间接受偿
参考答案：C
He left home without saying a word, and _______ worries many people and is to be found out.
A．where he has gone
B．where did he go
C．which place has he gone
D．where has he gone
洪灾后有可能出现哪些传染病（）。
A.痢疾、伤寒
B.霍乱
C.钩体
D.肝炎
E.流脑、乙脑
