能够体现一个国家目我创汇能力的国际收支差额是（）
A.贸易差额
B.经常项目差额
C.国际收支总差额
D.资本与金融项目差额
参考答案：A
哪项不是冠心病心绞痛胸痛的特点
A．胸痛位于胸骨体上段或中段之后
B．胸痛常为压迫、发闷或紧缩性
C．胸痛持续数日
D．疼痛常放射至左肩、左臂内侧达无名指和小指
E．休息或舌下含用硝酸甘油可缓解
He _______ the first place again, in which case, his mother will be more than happy. [ ]
A. can't win
B. would have won
C. might win
D. could have won
