第2题: [单项选择]一名31周早产女婴在外院住院治疗2周,曾有不规则用氧史,现纠正胎龄36周,在笔者医院门诊眼科就诊。眼底检查发现;Ⅰ区的血管区与无血管区隆起的嵴上有少量异常的新生血管生长及瘢痕组织样纤维增生。以下描述正确的是() A. 早期氧疗时血氧饱和度维持在95%左右 B. 36周时开始进行眼底检查 C. 早产儿常规用氧 D. 氧疗时氧分压维持在50~80mmHg E. 对阈病变密切观察病情变化 参考答案:E
第28题: [单项选择]What makes American people more pessimistic A. The fast pace and complicated way of life. B. Too much leisure time. C. Loose relationship between people. D. All of the above. 参考答案:C 答案解析:[关键词语]more pessimistic(更加悲观)
[详细解答]文中关于使美国人悲观的原因有好几点,如第六段中提到“Because of the complex way of life peo