The house the capitalist used to live in is now a nursery.
A:that
B:where
C:what
D:when
一测量船将超声波垂直向海底发射,测出从发射超声波到接收反射波所用时间是4s,已知声音在水中传播速度1500m/s.问:此处海底深度是多少?
Today is Monday. Tomorrow(明天) is ______.