A. 200 B. 240 C. 280 D. 320
A. net national product B. net national income C. gross domestic product D. gross national product
A. CST检查 B. 左侧卧位 C. 阴道检查,了解头盆关系 D. 静脉滴注硫酸镁 E. 人工破膜