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当前学科：新生儿及新生儿疾病
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一新生儿，孕35周剖宫产，生后第1天出现呼吸不规则，间断呼吸停止，每次发作持续时间达20秒以上，心率90次/分，四肢略绀，肌张力正常，可自行恢复，每日发作1~2次；双肺无干、湿性啰音。首先应给予的治疗是（）
A . A.静脉滴注氨茶碱
B . 给肺表面活性物质
C . 不需特殊处理
D . 机械通气
E . 轻弹足底、摩擦背部
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