生命的基本单位()。
A. 核酸
B. 蛋白质
C. 核酸和蛋白质
D. 原生质
E. 细胞
根据录音,选择合适的答案() 查看材料
A. There is no need to prepare for exams.
B. Using English is more important than memorizing.
C. Passing the class is not an easy thing.
D. Complex words shouldn"t be used often.
生命物质()。
A. 核酸
B. 蛋白质
C. 核酸和蛋白质
D. 原生质
E. 细胞
根据录音,选择合适的答案() 查看材料
A. The woman"s school choir.
B. The man"s experience of singing.
C. The man"s interest in singing.
D. The woman"s talent for singing.