Carbon dioxide, which makes a ______ between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
#13856
A
difference
B
comparison
C
connection
D
barrier
推荐题目
If better use is ____ your spare time , you will make greater progress.
#14296
A
used for
B
spent
C
made of
D
taken
He attends the evening class ________ , that is, Monday, Wednesday and Friday.
#14387
A
every three days
B
every the second day
C
every two day
D
every other day
It is said that dogs will keep you ________ for as long as you want when you are feeling lonely.(江西高考)
#11477
A
safety
B
company
C
house
D
friend
Amazing! Too many private cars are trapped on the highways which is free of charge for the first time, causing heavy traffic jams, some even _______ for several hours.
#13143
A
held up
B
broken up
C
taken up
D
given up