Which of the following conditions must exist for heat to flow from one object to another?()
A. The two objects must be in physical contact
B. The two objects must be the same size
C. There must be an existing temperature differential
D. There must be an existing weight differential
查看答案
房产供给弹性较小是在房地产供给的()
A. 市场期
B. 特短期
C. 短期
D. 长期
一般可以使用()命令来标识Transact-SQL批处理的结束。