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?