掐法常用于（）等肢端感觉较敏锐的穴位 ["A、人中","B、少泽穴","C、十宣穴","D、鹰窗穴"]
氧化炉底部法兰有异味需要进行（）处理。 ["用水冲洗","坚固螺栓","不需要","带压堵漏"]
燃油加油控制面板在（）. ["机长顶板上","副驾驶员顶板上","P5顶板上","P15板上"]
拿法可分为（） ["A、十指拿法","B、三指拿法","C、四指拿法","D、五指拿法"]
循环水系统预膜方案的分类分为（）。 ["专用配方的预膜方案","提高浓度的预膜方案","去除药剂的预膜方案","减少腐蚀的预膜方案"]
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