那些来自石家庄的客人都很热情。(改变词序,不改变句意)
______________________________________________
来自石家庄的那些客人都很热情。
细菌素的产生受____控制,其作用机制主要表现在__________。
Trees can stop the sand towards the rich farmland in the south. [ ]
A. to move
B. move
C. from moving
D. moves