()是因进出口商品而引起的收支。
A.贸易收支
B.劳务收支
C.单方面转移
D.特别提款权
参考答案:A
―What do you want to be in the future, John?
― I want to be _____ fashion designer. It is ______ interesting job.
A.a; the
B.a; /
C.a; an
D.an; the
患者因右上中切牙牙冠折裂,在根管治疗完成后,要求作烤瓷修复。为了使熔融的陶瓷材料与金属具有良好结合,其底层冠的金属材料可选用
A.铸造18-8铬镍不锈钢B.硬质铸造钴铬合金C.中硬质铸造钴铬合金D.镍铬合金E.软质铸造钴铬合金