第3题: [单项选择]进行复苏时,心脏按压与口对口人工呼吸的比例是() A. 4:1 B. 5:1 C. 6:1 D. 7:1 E. 30:2 参考答案:E 答案解析:徒手进行心肺复苏时,胸外心脏按压应与人工呼吸相配合,无论单人或双人操作均为每吹气2次,胸外心脏按压30次。由此可见双人复苏时,心脏按压与口对口人工呼吸的比例是30:2,所以本题的正确答案应为E。
第36题: [单项选择]______ they have boldly undertaken the construction of a 26 storied: building. A. As they are young B. Young as they are C. They are as young D. As young as they are 参考答案:B 答案解析:as作为从属连词引导让步状语从句时,从句一般要求倒装,即将形容词或分词提到从句前,B符合这一要求,将其置入空当中,句子内容讲得通,因此B为正确选择。C和D置入空当中,句意都不通,因此均可排除。题意为: