A.It is more comfortable than a conventional train. B.It doesn't require much track maintenance. C.It doesn't remain in any station very long. D.It carries more passengers than a conventional train.
【简答题】Large deposits of limestone and clay can be found in the northern reaches of the state of Washington. 2. Several colleges and universities in the United States are now requiring that their students pu...
【简答题】E x p l a i n t h e m e a n i n g o f t h e un d e r l i n e d p a r t i n e a c h s e n t e n c e . 5 . Becky will fill you in on what happened at the last meeting.