小红的身高是1米40厘米,小明的身高是15分米,他们谁高?高多少?
1米40厘米=1米4分米=14分米
14分米<15分米
15-14=1(分米)
答:小明比小红高,高1分米.
关于急性血源性骨髓炎的叙述,不正确的是()
A.常见于10岁以下儿童
B.多发生在长骨的干骺端
C.最常见的致病菌为链球菌
D.早期确诊主要依靠局部分层穿刺
E.X线检查一般在发病2周左右才显示骨质破坏和骨膜反应
I soon found that the work I was doing had al- ready been done by someone else. ____, I was wasting my time.[ ]
A. In other words
B. In a word
C. In words
D. At a word