在光镜下观察骺板的纵切面,从骨骺向干骺端依次可分为()
A.静止细胞层
B.增殖细胞层
C.钙化细胞层
D.肥大细胞层
E.软骨内骨化层
参考答案:A, B, D, E
评定营养状态,临床通常采用()。
A.三头肌皮皱厚度、体重
B.体重、血清白蛋白检测
C.三头肌皮皱厚度、Hb
D.氮平衡试验、Hb
E.肌酐身高指数
Tom's aunt wants to know ________ he has been up to so far, therefore, she decided to send
him an e-mail. [ ]
A. which
B. why
C. what
D. how