【判断题】凡苷元由环戊烷骈多氢菲基本母核组成的苷类化合物均属于皂苷。( )
【单选题】What percentage of neurons are interneurons?
【单选题】Cardiac output of the right side of the heart is what percentage of the cardiac output of the left side of the heart?
【单选题】Approximately what percentage of the volume of blood do the formed elements comprise?
【单选题】About what percentage of the Internet is in English now?
【单选题】下列酶和蛋白因子中,参与DNA复制的是:( )