关于机械波的说法正确的是[ ]

A．相邻的质点要相互做功

B．纵波的质点可以随波迁移，而横波的质点不能

C．振源开始时怎样振动，其他质点开始时就怎样振动

D．波中各质点振动频率是相同的

Most species of this plant thrive in ordinary well-drained garden soil and they are best planted 8 cm deep and 5 cm apart.

A．develop well

B．grow taller

C．mature

D．bear fruit