乳酸菌属于细菌，酵母菌属于真菌，主要区别在于 [ ]
A．酵母菌可以是多细胞群体
B．酵母菌没有鞭毛
C．酵母菌有成形的细胞核
D．酵母菌没有细胞壁
答案：C
既滋阴养血，又补心安神的中成药是（）
A．养血安神丸
B．复方枣仁胶囊
C．天王补心液
D．枣仁安神颗粒
E．人参珍珠口服液
As you ____new words in context, it is a very good method for you to guess their meanings. [ ]
A. come about
B. come across
C. come out
D. come up
