一列火车有12节车厢，每节硬坐车厢有168个座位，这列火车有多少个座位？
168×12=2016（个）．
答：这列火车有2016个座位．
硫酸镁治疗妊娠高血压综合征剂量过大时，最先出现的毒性反应是（）
A.头晕、血压过低
B.呼吸减慢
C.心率减慢
D.膝反射减弱或消失
E.尿量过少
— We got ______complaints about the loud music.
— We should have turned it down when we had the party. [ ]
A. a load of
B. a set of
C. a little of
D. a piece of
