如果三角形三边长分别是正整数a，b，c，且a＞b＞c，b=5，则满足_爱下问搜题

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问题填空题

如果三角形三边长分别是正整数a，b，c，且a＞b＞c，b=5，则满足条件且周长彼此不同的三角形共有（）个。

答案

6

选择题

The thought of going back home was__________kept him happy while he was working abroad.

[ ]

A that

B. all that

C. all what

D. which

问答题简答题

试述发育性关节脱位的治疗。