A:①③⑥
B:②④⑥
C:①④⑥
D:②③⑤
下图漫画倡导大家应该( )
Ⅰ.肝癌HepG-2细胞的培养:
长江和黄河共同流经的地形区是( )
What can we infer from Shelly-Ann's statement underlined in Paragraph 5?