两汉的信用以()为主要形式,而且主要是由()办理。
参考答案:货币信贷;私人
He said that light ______ much faster than sound. [ ]
A. has travelled
B. went
C. travels
D. travelled
中药煎煮后一般煎液量为()
A.200~300m1
B.150~200m1
C.200~250ml
D.100~150m1
E.50~100ml