在△ABC中,∠C=90°,若AB=5,则AB2+AC2+BC2=______.
根据勾股定理可知:AB2=AC2+BC2,∵AB=5
∴AB2+AC2+BC2=50.
She didn't come to his birthday party just ______what he had said to her the day before. [ ]
A. because
B. because of
C. as result of
D. thanks for
骨关节炎的疼痛最主要的特点是
A.运动痛
B.休息痛
C.阴雨天痛
D.不定时痛
E.寒冷痛