第5题: [多项选择]关于SQLServer中timestamp(时间戳)这种数据类型的描述不正确的为() A. 等价于datetime数据类型 B. 每次插入或更新包含timestamp列的行时该值均会更新 C. timestamp列可作为主键 D. 等价于datetime数据类型的短日期格式形如’99-1-22’ 参考答案:A, B
第8题: [单项选择]What are guests encouraged to do later A. Create and present their own art B. Watch an informational film C. Take advantage of a sale in the gift shop D. Provide Omar with feedback 参考答案:B