对开信用证一般适用于易货贸易、来料加工和补偿贸易三种贸易方式。( )
参考答案：对
One third of the country _____ covered with trees and the majority of the citizens _____ black people.
A．is; are
B．is; is
C．are; are
D．are; is
股份有限公司特有的管理机制是()。
A.民主管理
B.资本扩张
C.企业年金
D.资本约束
