胫神经损伤出现()
A.仰趾畸形,足底皮肤感觉障碍
B.三角肌瘫痪
C.下肢后侧,小腿前外侧、足底和足背外侧皮肤感觉障碍
D.足下垂内翻
E.腰骶部痛觉减退
参考答案:A
. As a teacher, he has never given his students so difficult a problem ____ they can’t work out.
A.if
B.that
C.when
D.As
SELECT-SQL语句中,条件短语的关键字是( )。
A.4
B.10
C.15
D.20