The girl was born ___ the morning of June 18th,1974. [ ]
A. at
B. on
C. in
D. during
答案:B
非结算会员向客户收取的保证金属于()所有。
A.非结算会员
B.客户
C.期货交易所
D.非结算会员和客户共有
潜在GDP