第5题: [单项选择]血浆血栓素B2和6-酮-PGF1α测定结果的变化,下列哪项是正确的( ) A. 前者增高,后者降低,临床有血栓形成 B. 前者降低,后者增高,临床有血栓形成 C. 二者均增高,临床有血栓形成 D. 二者均降低,临床有血栓形成 E. TXB2和6-酮PGF1α与临床是否有血栓形成无关系 参考答案:A
第14题: [单项选择] Attempts have been made for nearly three decades to increase the amount of precipitation from clouds by seeding them with salt or silver iodide. A. Devices B. Hypotheses C. Efforts D. Suggestions 参考答案:C 答案解析:名词辨析。attempt努力,尝试:abandon the attempts放弃尝试。device装置:a device for opening bottles一个打开瓶子的装置。hypothesis
第23题: [单项选择]Here the fresh sea breezes blew and Oakland sank down to a ______ of smoke behind her. A. stain B. spot C. point D. smudge 参考答案:D 答案解析:本题译文:在这里清新的海风轻轻地吹过,Oakland在她的身后只剩下一股烟。此题考查名词近义词的辨析。smudge意思是“污点,污迹,熏烟”;stain意思是“污点,瑕疵,玷污,败坏”; pot意思是