下列井穴中，治疗疝气应首选的腧穴是（）。
A.涌泉
B.隐白
C.大敦
D.足窍阴
E.至阴
参考答案：C
-You are so confident, and you sometimes might_________ someone else around you.
-I agree with you. I often made them angry before. [ ]
A. annoy
B. bothered
C. troubles
D. annoyed
先化简，再求值。
(x2+5-4x3)-2(-2x3+5x-4)，其中x=-2。
