题型:选择题 日本东部大地震造成日本国内经济损失约2350亿美元,其中2350亿保留两个有效数字用科学记数法表示为 [ ]A.2.3×1011B.2.35×1011C.2.4×1011D.0.24×1012 查看答案
题型:单项选择题 A client is at risk for developing a pressure ulcer. The first warning of an impending pressure ulcer is when pressure applied to skin it turns()A. whitish.B. yellowish.C. bluish.D. reddish. 查看答案