呕吐与头部位置改变有密切关系的疾病是（）
A．脑炎
B．耳源性眩晕
C．妊娠反应
D．尿毒症
E．糖尿病酮症酸中毒
参考答案：B
When he learned that his brother had returned from abroad, he set off to his home _____. Which of the
following is not OK? [ ]
A. immediately
B. right away
C. right then
D. right now
E. at once
