白细胞粘附分子缺陷症的表现中哪项不正确
A.新生儿脐带脱落延迟
B.皮肤、黏膜反复细菌感染
C.血液中性粒细胞增多
D.感染部位脓液较多
E.骨髓移植疗效好
参考答案:D
门刀垂直度≤()mm。
Jack Smith is only a _____ boy, but he can lift such aheavy stone. [ ]
A. 12-years-old
B. 12 years old
C. 12-year-old
D. 12 year old