第23题: [单项选择]慢性肠系膜缺血的表现,说法最为准确的是()。 A. 饥饿痛 B. 饱食痛 C. 饱食后20~30分钟出现脐周绞痛 D. 饱食后2~3小时分钟出现脐周绞痛 E. 饥饿痛,进食后缓解 参考答案:C
第24题: [填空题]Some businessmen have found it ______ by putting users into video-game-like virtual worlds. 参考答案:possible to make money 答案解析:[详细解答] 本文的第七段中提到:“Marketing and record label’ executives say Web sites that put users intl video-gam