此题为判断题(对,错)。
第1题:
A.help, cleans
B.help,clean
C.helps, cleaning
D.helps, clean
第2题:
)16.
A.makes
B.lets
C.improves
D.helps
第3题:
Each person takes his plate, helps ____ and comes back to his place.
A: him
B: them
C: his
D: himself
第4题:
此题为判断题(对,错)。
第5题:
—Which subject do you like______?
—I like chemistry than any other one.
A. better, better
B. best, better
C. best, best
D. better, best
第6题:
A.ResourceReservationProtocol(RSVP)
B.first-in,first-out(FIFO)
C.best-effort
D.CBWFQ
E.IntServ
F.DiffServ