表面具有高亲和力IgE受体的细胞是
A．Th细胞B．Tc细胞C．B细胞D．巨噬细胞E．嗜碱粒细胞
参考答案：E
.We were all waiting for you .You _____for the seaside by yourself without leaving a message.
A．mustn’t leave
B．shouldn’t have left
C．couldn’t have left
D．needn’t leave
某女，月经每33～35天一行，经期3天，量中，轻微小腹胀痛，诊断为（）
A.月经后期
B.月经过少
C.经行腹痛
D.崩漏
E.正常生理现象
