一个VLAN不是一个()。
A.冲突域
B.广播域
C.管理域
D.自治域
参考答案:A, C, D
先天性肥厚性幽门狭窄患儿特有的体征是
A.有胃蠕动波
B.营养不良、脱水、明显消瘦
C.呕血
D.进行性腹胀
E.右上腹扪及橄榄样肿块
The differences between male and female brains are the major causes of the scores between boys and girls.