However, the language is alive and well, as the core APIs for the Apple Mac OS X operating system were developed in Objective-C.

无论如何，这种语言还存在，并且Apple Mac OS X操作系统的核心api都是用Objective - c开发的。

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Objective: To evaluate the effective outcome and summarize nursing experience for the patients with percutaneous lung puncture biopsy by application of C-arm digital subtracting X-ray system.

目的：总结C型臂数字减影X光机引导经皮穿刺肺活检前后疗效及护理。

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