问题
单项选择题
胃溃疡的表现
A．上腹部节律性疼痛，进食后30～60分钟发作
B．上腹部剧烈性疼痛，阵发性加剧
C．腹壁柔韧感
D．腹壁静脉曲张，血流方向正常
E．上腹部节律性疼痛，进食后2～3小时发作，有时夜间被痛醒
答案
参考答案：A
解析：胃溃疡表现为上腹部节律性疼痛，进食后30～60分钟发作。
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胃溃疡的表现
A．上腹部节律性疼痛，进食后30～60分钟发作
B．上腹部剧烈性疼痛，阵发性加剧
C．腹壁柔韧感
D．腹壁静脉曲张，血流方向正常
E．上腹部节律性疼痛，进食后2～3小时发作，有时夜间被痛醒
参考答案：A
解析：胃溃疡表现为上腹部节律性疼痛，进食后30～60分钟发作。
Three firms in the same industry show the following ratios for the most recent year after all proper adjustments have been made for dilutive securities and differences in financial reporting standards :
| Earnings per Share | Sales per Share | Operating Cash Flow per Share | |
| Company X | $ 1.50 | $ 2.50 | $ 1.00 |
| Company Y | $ 3.50 | $ 1.00 | $ 2.00 |
| Company Z | $ 2.00 | $1.50 | $ 3.00 |
A. is Company X because it has the greatest sales per share.
B. is Company Y because it has the highest earnings per share.
C. cannot be deten’nined because per-share ratios are not comparable.