下列产品中不属于化妆品的是（）
A、美容院注射的肉毒杆菌毒素
B、洗面奶
C、染发剂
参考答案：A
This machine _____. It hasn't worked for years. [ ]
A. didn't work
B. wasn't working
C. doesn't work
D. isn't working
下列不属于元曲四大家的是（）。
A.关汉卿
B.郑光祖
C.季君祥
D.白朴
