High-speed trains travel at 300 kilometers an hour，which is about normal trains．
#14190
A
four times the speed as
B
the speed four times of
C
four times as the speed of
D
four times the speed of
推荐题目
---You are always full of ______. Can you tell me the secret?---Taking plenty of exercise every day.
#13282
A
power
B
strength
C
force
D
energy
This information allows businessmen to keep of their list of goods by showing which items are being sold and how fast they are moving.
#11204
A
sight
B
track
C
touch
D
sign
—What do you think of the story in today's newspaper?—We shouldn't ________ the trouble of helping others only because what we do may invite trouble.
#11101
A
knock off
B
take off
C
keep off
D
break off
Every year, ____ graduates take pan in TOEFL for further education abroad.
#14545
A
too much
B
several scores
C
many a
D
scores of
—Which module is the most difficult in this book?— I think _____ module.
#12602
A
ninth
B
the ninth
C
ninth
D
the ninth