结论：超声对诊断心内膜炎有明显指导意义，应为首选。
Conclusion: Ultrasonology should be chosen first in the diagnosis of infective endocarditis.
结论非手术治疗儿童桡骨颈骨折不但方法简单，而且效果明显，应为首选。
Conclusion the conservative method was simple, effective and optimal for the treatment of radial neck fractures in children.
此外地点的选择，也是重中之重，能够保证对话双方，至少是我方清晰可辨的场所，比较安静和不受干扰的地方应为首选。
In addition, the choice of location, is the priority among priorities, to ensure the dialogue between the two sides, at least is our clear place, quiet and undisturbed place should be preferred.
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