"稻田皮炎"的病原体是()
A.血吸虫成虫
B.血吸虫毛蚴
C.血吸虫尾蚴
D.血吸虫童虫
E.胞蚴
参考答案:C
药品标签上有效期的具体表述形式应为
A.有效期至×年
B.有效期至×年×月
C.有效期自生产之日起×年
D.有效期至×年×月×日
E.失效期为×年×月
____ you told me, I had heard nothing of what happened.
A.Till
B.Until
C.After
D.Since