电子邮件是指（）。
A.用计算机管理邮政信件
B.通过计算机网络收发消息
C.用计算机管理电话系统
D.用计算机处理收发报业务
参考答案：B
—What does your English teacher look like?
—______. [ ]
A. She likes singing
B. She's tall and has long blonde hair
C. She looks happy
D. She is from America
颈动脉窦反射属于（）
A.深反射
B.浅反射
C.病理反射
D.自主神经反射
E.正常反射
