—What does PM 2.5 mean?—It's a professional ________ indicating the condition of air pollution.
#11329
A
term
B
item
C
number
D
mark
推荐题目
I feel it is your husband who __________ for the spoiled child.
#12683
A
is to blame
B
is going to blame
C
is to be blamed
D
should blame
As far as I know, the new highway is about______ the former one.
#14090
A
as wide as three times
B
three times the width of
C
longer than twice
D
the width of three times
I believe his design is ______for it’s completely different from others’.
#10933
A
common
B
reasonable
C
practical
D
original
I tried hard to get some information about the new technology out of his mouth, but he remained_________．
#14423
A
quiet
B
secret
C
silent
D
calm
He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ____.
#10857
A
broke in
B
broke up
C
broke out
D
broke down