【单选题】在黄酮化合物的醇溶液中,加人二氯氧锆甲醇液呈鲜黄色,再加人枸橼酸甲醇液,黄色不褪 表示该化合物具有
【单选题】__________ she couldn't understand was__________ fewer and fewer students showed interest in her lessons.
【单选题】When she was falsely accused of stealing the gold chain, the student became very indignant.
【单选题】下列哪个药物不用于治疗胎衣不下、子宫炎、子宫蓄脓的药物?
【单选题】在黄酮化合物的醇溶液中,加入二氯氧锆甲醇液呈鲜黄色,再加人枸櫞酸甲醇液,黄色不褪表示该化合物具有
【单选题】The book's written by my brother. Don't you find it () .
【单选题】How did the student feel when he saw Socrates waiting patiently on the beach?