核酶(ribozyme)
参考答案:
细胞中一类具有生物催化功能的RNA,即成分是RNA的生物催化剂。
Which of the following did not contribute to the popularization of newspapers a. New technology and compulsory education. b. Industrialization. c. Population growth. d. Urbanization.
目前我国已成功申报的21项世界文化遗产中,有一半以上与( )有关。
A.汉文化
B.唐文化
C.宋文化
D.明文化