GTS系统可以处理的业务有（）。
A．开立信用证
B．单证议付
C．外汇汇款
D．托收
参考答案：A, B, C, D
____________ at college for 3 years, she knows the place very well.
A．To have studied
B．Having studied
C．Studying
D．Studied
模压成型前对物料进行预热的方式有哪些？
