以下哪个不是数据仓库需求的成果体现形式（）
A.文字
B.图片
C.页面或DEMO
D.表格
参考答案：D
I can remember very few ______ when he had to cancel his plans because of poor health.
A．situations
B．conditions
C．occasions
D．circumstances
红外线检测车的检测时间是如何规定的？
