A. 立即剖宫产 B. 立即缩宫素引产 C. 立即前列腺素引产 D. 卧床休息,吸氧 E. 积极控制心衰后以剖宫产终止妊娠
A. 正确 B. 错误
A. the volume of transactions in that issue is large B. the price volatility of that issue is low C. competitive pressures are high D. all of the above