题目内容

3) Twenty-four hours later, Amber was 1.__ to hear a helicopter flying nearby. She thought this would be her only 2._ to be saved, so she yelled and whistled as loud as she could.

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4) Although Amber was 1._____ 2._ , she is thankful because she knows that she is very lucky to be 3.______.

健康体适能要素不包含以下哪一项？

A. 肌肉适能
B. 心肺适能
C. 身体成分
D. 营养摄入

以下不属于柔韧性训练法方法的是？

A. PNF拉伸
B. 静态伸展
C. 动态伸展
D. 自我拉伸

关于呕血，下列不正确的是（）

A. 病因最多见于消化性溃疡
B. 出血方式为呕出
C. 血中混有食物残渣、胃液
D. 酸碱反应为碱性
E. 出血前有上腹部不适、恶心、呕吐