交易所规定,交易所在各结算银行开设一个专用的结算账户,用于存放会员的保证金及相关款项。会员须在结算银行开设专用资金账户,用于存放保证金及相关款项。()
参考答案:对
下 * * 脏配合关系中,被称为“水火既济”的是()
A.心肾
B.心肝
C.心脾
D.肺肾
E.脾肾
It took us ____ to finish this work. [ ]
A. three hour and a half
B. three and a half hour
C. three and half hours
D. three and a half hours