确定垂直距离采用
A．息止颌位法B．吞咽咬合法C．卷舌后舔法D．哥特弓描记法E．前伸颌位记录
参考答案：A
One day, a little baby _________ born.[ ]
A. is
B. was
C. were
广义的休息时间
