麻木的病因不包括以下哪项（）
A.痰瘀内阻
B.气血不足
C.肝风内动
D.食积内停
E.以上都不是
参考答案：D
One needs to work hard to realize his dream, as the saying goes "Hard work _____ success". [ ]
A. lies in
B. contribute to
C. leads to
D. begins with
目前有哪些细胞衰老的理论？
