呕血的病因,哪项错误
A.食管疾病
B.结肠疾病
C.胃及十二指肠疾病
D.肝、胆道疾病
E.血液病
参考答案:B
—Is there a pay phone ____ the neighborhood?
—Yes, it's ____ Center Street ____ the right. [ ]
A. in, down, on
B. on, on, is
C. in, on, is
D. on, down, on
试论票据背书的规则。