收受定金的一方不履行合同约定义务的,定金应当()
A. 返还
B. 双倍返还
C. 上缴国库
D. 没收
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In April 1984, the State Council (declared) 14 cities along the entire coast plus Hainan Island open to foreign investment.()
A. demonstrated
B. informed
C. announced
D. displayed
T10A表示正确的是()
A. 表示碳素工具钢
B. 含碳量为1.0%
C. A是顺序标记
D. 含碳量为10.0%